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Homonyms

IRMNG homonym list - genus level - Initial letter = "K" (330)

Please note, this is a provisional homonyms list from IRMNG on 2025-03-29, and is subject to change. It may include nomina nuda, rejected and otherwise non-current names, plus some published misspellings, in addition to homonyms that have been validly published. A small proportion of duplicate entries awaiting rationalisation may also be included.

Click on any genus name for additional details, as currently available.

Kabataia
 Kabataia Lom, Dyková & Tonguthai, 1999 accepted as Inodosporus Overstreet & Weidner, 1974 · Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Glugeida (Order) > Spragueidae (Family)
     Kabataia Kazachenko, Korotaeva & Kurochkin, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Trebiidae (Family)

Kablikia
     Kablikia Opiz in Berchtold & Opiz, 1839 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
     Kablikia Geinitz, 1862 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Kabulia
     Kabulia Ramme, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Kabulia Bor & C.E.C. Fischer, 1939 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Kachchhia
     Kachchhia Srivastava, Gupta & Jauhri, 2008 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Phymosomatidae (Family)
     Kachchhia M.N. Bose & J. Banerji, 1984 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pteridospermopsida (awaiting allocation) (Order) > Pteridospermopsida (awaiting allocation) (Family)

Kachinia
     Kachinia Tong & Li, 2018 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Oonopidae (Family)
     Kachinia Chen & Wang, 2019 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Schizopteridae (Family)

Kaempferia
 Kaempferia Miers, 1886 accepted as Macrocheira De Haan in Siebold, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)
     Kaempferia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)

Kaernbachia
 Kaernbachia Schlechter, 1914 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Cunoniaceae (Family)
     Kaernbachia O. Kuntze, 1891 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtales (awaiting allocation) (Family)

Kaestneria
     Kaestneria Ivie, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
     Kaestneria Wiehle, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Kahlia
 Kahlia Horváth, 1932 accepted as Kahliella Corliss, 1960 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Stichotrichida (Order) > Kahliellidae (Family)
     Kahlia Ashmead, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Kahliella
     Kahliella Corliss, 1960 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Stichotrichida (Order) > Kahliellidae (Family)
 Kahliella Tucolesco, 1962 accepted as Kahliela Tucolesco, 1962 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Stichotrichida (Order) > Kahliellidae (Family)

Kailidiscus
     Kailidiscus Wang, 2006 † · Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)
     Kailidiscus Zhao, Sumrall, Parsley & Peng, 2010 † accepted as Parsleya Deshmukh, 2022 † (junior homonym)· Animalia (Kingdom) > Echinodermata (Phylum) > Edrioasteroidea (Class) > Edrioasteroidea incertae sedis (Order) > Edrioasteroidea incertae sedis (Family)

Kainelloides
     Kainelloides Lisogor, 1977 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Kainelloides Lisogor, 1974 † accepted as Kainelloides Lisogor, 1974 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Kaira
     Kaira Cambridge, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Kaira de Laubenfels, 1936 accepted as Tetilla Schmidt, 1868 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spirophorida (Order) > Tetillidae (Family)

Kaiyangites
     Kaiyangites Qian & Yin, 1984 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > Cambroclavida (Class) > (Order) > (Family)
 Kaiyangites Qian & Yin in Xing, Ding, Luo, He & Wang, 1984 † accepted as Kaiyangites Qian & Yin, 1984 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > Cambroclavida (Class) > (Order) > (Family)

Kakamasia
     Kakamasia Lawrence, 1944 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Kakamasia Ueckermann & Grout, 2007 accepted as Ueckermanniella Beron, 2012 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Iolinidae (Family)

Kakamega
 Kakamega Dawidowicz & Wesołowska, 2016 accepted as Kakameganula Wesołowska, 2020 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Kakamega Mann, Burton & Lennerstedt, 1978 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Modulatricidae (Family)

Kakerlac
 Kakerlac Serville, 1839 accepted as Periplaneta Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)
 Kakerlac Latreille, 1825 accepted as Blatta Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)

Kalbyella
     Kalbyella Berg-Madsen & Peel, 1978 † · Animalia (Kingdom) > Mollusca (Phylum) > Monoplacophora (Class) > Tryblidiida (Order) > Tryblidiida (awaiting allocation) (Family)
     Kalbyella Berg-Madsen, 1986 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Monoplacophora (Class) > Monoplacophora (awaiting allocation) (Order) > Monoplacophora (awaiting allocation) (Family)

Kalcapion
     Kalcapion Schilsky in Kuester, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Kalcapion Wagner, 1932 accepted as Oryxolaemus Alonso-Zarazaga, 1991 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Kali
     Kali P. Miller, 1754 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Kali Lloyd, 1909 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chiasmodontidae (Family)

Kalimantania
     Kalimantania Banarescu, 1980 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
     Kalimantania Jeekel, 1963 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Kalliapseudes
     Kalliapseudes Stebbing, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Kalliapseudidae (Family)
 Kalliapseudes Lang in Wingstrand, 1956 accepted as Kalliapseudes Stebbing, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Kalliapseudidae (Family)

Kalliphobe
     Kalliphobe Busch, 1851 · Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Actiniaria incertae sedis (Family)
     Kalliphobe Metschnikoff, 1871 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Kallirhynchia
     Kallirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Wellerellidae (Family)
     Kallirhynchia Buckman, 1914 † accepted as Kallirhynchia Buckman, 1917 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Wellerellidae (Family)

Kalops
     Kalops Sollas, 1889 accepted as Kalops Sollas, 1889 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Kalops Poplin & Lund, 2002 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Palaeonisciformes (awaiting allocation) (Family)

Kaltenbachiella
     Kaltenbachiella Rübsaamen, 1916 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Kaltenbachiella Schouteden, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Kalyptrazetes
     Kalyptrazetes Balogh, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Microzetidae (Family)
 Kalyptrazetes Higgins, 1969 accepted as Kalyptrazetes Balogh, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Microzetidae (Family)

Kamosia
 Kamosia Obenberger accepted as Sjoestedtius Théry, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Kamosia Kerremans, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Kampiopsis
     Kampiopsis de Folin, ? 1882 accepted as Kampiopsis de Folin, ? 1882 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Kampiopsis de Folin, ? 1885 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Kanaloa
     Kanaloa J.L. Barnard, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Exoedicerotidae (Family)
     Kanaloa D.H. Lorence & K.R. Wood, 1994 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Kanchia
 Kanchia Martens, 1987 accepted as Nepalkanchia Martens, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)
     Kanchia Moore, 1883 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Kandaharia
 Kandaharia Godwin-Austen, 1914 accepted as Kandaharia Godwin-Austen, 1914 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Parmacellidae (Family)
     Kandaharia R. Alava, 1976 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Kaniniella
     Kaniniella Sivov in Khalfin, 1955 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Kaniniella Kobayashi, 1938 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)

Kansasia
     Kansasia Tillyard, 1937 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Palaeodictyoptera (Order) > Palaeodictyoptera (awaiting allocation) (Family)
     Kansasia Poplin, 1974 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Osteichthyes (awaiting allocation) (Class) > Osteichthyes (awaiting allocation) (Order) > Osteichthyes (awaiting allocation) (Family)

Kantia
 Kantia M.P. Doludenko & E.I. Kostina, 1986 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Gymnospermae (awaiting allocation) (Class) > Gymnospermae (awaiting allocation) (Order) > Gymnospermae (awaiting allocation) (Family)
     Kantia J. von Pia, 1912 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)

Kapala
 Kapala Ponder, 1982 accepted as Buccipagoda Ponder, 2010 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
     Kapala Cameron, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eucharitidae (Family)

Kapiria
     Kapiria Obenberger, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Kapiria Ramme, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Kapua
     Kapua Lambkin & Yeates in Lambkin, Yeates & Greathead, 2003 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Kapua Marwick, 1931 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Kara
     Kara Strebel, 1910 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Kara Matsumura, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Karadagella
     Karadagella Babanova, 1965, nom. nud. † accepted as Karadagella Babanova, 1965 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Muirwoodellidae (Family)
     Karadagella Babanova, 1965 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Muirwoodellidae (Family)

Karagandoides
     Karagandoides Ivshin, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Karagandoides Ivshin, 1962 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Karamea
     Karamea Forster, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Triaenonychidae (Family)
 Karamea Salmon, 1964 accepted as Forsteramea Salmon, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)

Karamia
 Karamia Winkler, 1925 accepted as Karumia Martinez Escalera, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dascillidae (Family)
     Karamia P.N. Kolosov, 1984 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Oscillatoriaceae (Family)

Karasekia
     Karasekia Melichar, 1926 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Karasekia Melichar, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Karaunguria
     Karaunguria Kazantseva-Selentseva, 1981 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cheirolepiformes (Order) > Karaunguriidae (Family)
     Karaunguria Kazantzeva, 1974 † accepted as Karaunguria Kazantseva-Selentseva, 1981 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cheirolepiformes (Order) > Karaunguriidae (Family)

Karelinia
     Karelinia Sychevskaya & Prokofiev, 2005 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Centrolophidae (Family)
     Karelinia Lessing, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Karelosteus
     Karelosteus Obrutschev, 1933 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Pteraspidiformes (Order) > Pteraspidiformes (awaiting allocation) (Family)
     Karelosteus Obrutschev, 1930 † accepted as Karelosteus Obrutschev, 1933 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Pteraspidiformes (Order) > Pteraspidiformes (awaiting allocation) (Family)

Karenia
     Karenia Distant, 1888 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Karenia G. Hansen & Ø. Moestrup in N. Daugbjerg, G. Hansen, J. Larsen & Ø. Moestrup, 2000 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gymnodiniales (Order) > Kareniaceae (Family)

Kargalia
     Kargalia Vishnyakova, 1994 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Spiloblattinidae (Family)
     Kargalia Aristov, 2009 † accepted as Karga Aristov, 2018 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Grylloblattodea (Order) > Kargalopteridae (Family)
     Kargalia Novozhilov, 1956 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Branchiopoda (awaiting allocation) (Order) > Branchiopoda (awaiting allocation) (Family)

Karkinorhynchus
     Karkinorhynchus Meixner, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Karkinorhynchidae (Family)
 Karkinorhynchus Schilke, 1970 accepted as Karkinorhynchus Meixner, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Karkinorhynchidae (Family)

Karlingia
 Karlingia A.E. Johanson, 1944 accepted as Rhizophlyctis A. Fischer, 1891 · Fungi (Kingdom) > Chytridiomycota (Phylum) > Chytridiomycetes (Class) > Rhizophlyctidales (Order) > Rhizophlyctidaceae (Family)
     Karlingia Ferguson, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Macrostomida (Order) > Dolichomacrostomidae (Family)

Karma
     Karma Wells, 2009 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Karma A.P. Karremans, 2023 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Karnyia
 Karnyia Shelford, 1909 accepted as Blepharodera Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)
 Karnyia Watson, 1922 accepted as Karnyothrips Watson, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Karpinskya
 Karpinskya Gortani, 1907 † accepted as Karpinskia Tschernyschev, 1885 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Atrypida (Order) > Atrypidae (Family)
     Karpinskya (W.N. Croft) L. Grambast, 1963 † · Plantae (Kingdom) > Charophyta (Phylum) > Charophyceae (Class) > Sycidiales (Order) > Trochiliscaceae (Family)

Karreria
     Karreria (E. Munier-Chalmas ex L. Morellet & J. Morellet) J. von Pia in M. Hirmer, 1927 † accepted as Karreria (E. Munier-Chalmas ex L. Morellet & J. Morellet) J. von Pia in M. Hirmer, 1927 † (nomen dubium)· Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Karreria Rzehak, 1891 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Karreriidae (Family)

Karschia
     Karschia Walter, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Karschiidae (Family)
     Karschia Körber, 1865 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Asterinales (Order) > Stictographaceae (Family)
 Karschia Förster, 1900 accepted as Plattycantha Förster, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Aeshnidae (Family)
     Karschia Brunner, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Karschiola
     Karschiola Gaede in Seitz, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
 Karschiola Strand, 1932 accepted as Sandalodes Keyserling in Koch, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Karstenia
 Karstenia Sayn, 1904 † accepted as Carstenia Hyatt, 1903 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
 Karstenia Britzelmayr, 1897 accepted as Tomentella Johan-Olsen in Brefeld, 1888 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Thelephorales (Order) > Thelephoraceae (Family)
     Karstenia E.M. Fries in P.A. Karsten, 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Rhytismatales (Order) > Rhytismatales incertae sedis (Family)
 Karstenia Göppert, 1836 † accepted as Karstenia Göppert, 1836 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)

Karyamoeba
     Karyamoeba Kofoid & Swezy, 1924 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Karyamoeba Giglio-Tos, 1900 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Kasachstania
     Kasachstania Maksimova, 1972 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)
     Kasachstania Panfilov in Dolin & Pritykina, 1980 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Polystoechotidae (Family)
     Kasachstania Maksimova, 1971 † accepted as Kasachstania Maksimova, 1971 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)

Kasakhstania
     Kasakhstania Arnol'di, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Kasakhstania Besnossova, 1968 † accepted as Brachiokasakhstania Ceccolini & Cianferoni, 2022 † (junior homonym)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferidae (Family)

Kashmiria
     Kashmiria D. Hong, 1980 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
     Kashmiria Stary & Bhagat, 1978 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Kassina
     Kassina Girard, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hyperoliidae (Family)
 Kassina † accepted as Kassinia Khabakov, 1937 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Nassellaria (awaiting allocation) (Family)

Kassinella
 Kassinella Keller, 1960 † accepted as Kassinasma Doweld, 2015 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Amplexidae (Family)
     Kassinella Borissiak, 1956 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Hesperomenidae (Family)

Kassinia
     Kassinia Khabakov, 1937 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Nassellaria (awaiting allocation) (Family)
     Kassinia Mandelstam, 1956 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Katachiton
     Katachiton de Folin, ? 1885 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Katachiton de Folin, ? 1882 accepted as Katachiton de Folin, ? 1882 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Katanga
 Katanga Yorke & Maplestone, 1926 accepted as Onchocercella Yorke & Maplestone, 1931 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Onchocercidae (Family)
     Katanga Schouteden, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Kataria
     Kataria Faubel, 1983 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Stylochidae (Family)
     Kataria Scanferla, Zaher, Novas, de Muizon & Céspedes, 2013 † accepted as Katariana Deshmukh, Mungole, Scanferla & Zaher, 2022 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Macrostomata incertae sedis (Family)

Kataschisia
     Kataschisia Wehrli, 1934 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Kataschisia Fletcher, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Katona
     Katona Hulst, 1888 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Katona Schmidt, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Issidae (Family)

Katoporus
     Katoporus John, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Discolomatidae (Family)
 Katoporus Gross, 1967 † accepted as Katoporodus Turner & Peel, 1986 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Phlebolepidiformes (Order) > Katoporodidae (Family)

Katrolites
     Katrolites [authority?] † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Katrolites B.S. Venkatachala & R.K. Kar, 1967 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Katunia
     Katunia Kul'kov, 1963 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Leiorhynchidae (Family)
     Katunia Romanenko & Romanenko, 1962 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Katzeria
     Katzeria Mendes, 1966 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Katzeria Sliskovic, 1966 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)

Kaufmannia
     Kaufmannia Radoszkowskii, 1877 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Kaufmannia E. Regel, 1875 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
 Kaufmannia Sdzuy, 1961 † accepted as Kaufmannella Sdzuy, 1979 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Kaulfussia
 Kaulfussia Blume, 1828 accepted as Christensenia Maxon, 1905 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Marattiaceae (Family)
     Kaulfussia C.G.D. Nees, 1820 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Kaulfussia A.W. Dennstedt, 1818 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)

Kaupifalco
     Kaupifalco Bonaparte, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)
     Kaupifalco Bonaparte, 1854, nom. nud. accepted as Kaupifalco Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)

Kaupornis
     Kaupornis Gray, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Kaupornis Bonaparte, 1854 accepted as Kaupornis Bonaparte, 1854 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Kauria
     Kauria Viidalepp, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Kauria Bordoni, 2021 accepted as Neokauria Deshmukh, 2023 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Kayania
     Kayania Medrano, Kury & Mendes, 2021 accepted as Neokayania Yao & Xing, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Cosmetidae (Family)
     Kayania Distant, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Flatidae (Family)

Kazachstania
 Kazachstania Zubcova, 1971 accepted as Saccharomyces Meyen ex E.C. Hansen, 1838 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Saccharomycetaceae (Family)
 Kazachstania † accepted as Kasachstania Maksimova, 1972 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)

Kazanella
     Kazanella Martynov, 1930 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
 Kazanella Mazaev, 2015 † accepted as Kazankiella Mazaev, 2016 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Coenogastropoda incertae sedis (Order) > Palaeostylidae (Family)

Kearfottia
     Kearfottia Traugott-Olsen, 1996 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Elachistidae (Family)
     Kearfottia Fernald, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Incurvariidae (Family)

Keckia
     Keckia E.F. Glocker, 1841 † accepted as Keckia E.F. Glocker, 1841 † (nomen dubium)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
 Keckia Straw, 1966 accepted as Keckiella Straw, 1967 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)

Keferollea
     Keferollea J.M.H. Shaw, 2004 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Keferollea J.M.H. Shaw, 2004, nom. inval. accepted as Keferollea J.M.H. Shaw, 2004 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Kefersteinia
 Kefersteinia Quatrefages, 1866 accepted as Psamathe Johnston, 1836 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Hesionidae (Family)
 Kefersteinia Neumayr, 1891 † accepted as Eoschizodus Cox, 1951 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Eoschizodidae (Family)
     Kefersteinia H.G. Reichenbach, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Kegelia
     Kegelia C.H. Schultz-Bipontinus, 1848 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Kegelia H.G. Reichenbach, 1852 accepted as Kegeliella Mansfeld, 1934 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Kegeliella
     Kegeliella Mansfeld, 1934 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Kegeliella Lütke, 1990 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)

Keiferella
     Keiferella Boczek, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)
 Keiferella Channabasavanna, 1966 accepted as Keiferana Channabasavanna, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)

Keijia
     Keijia Yoshida, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Keijia Teeter, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Pectocytheridae (Family)
 Keijia Manning, 1995 accepted as Carinosquilla Manning, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Stomatopoda (Order) > Squillidae (Family)

Keiseria
     Keiseria Lindner in James, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Keiseria Lindner, 1966 accepted as Keiseria Lindner in James, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Keithia
     Keithia Koteja, 2000 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eriococcidae (Family)
     Keithia K.P.J. Sprengel, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicales incertae sedis (Family)
     Keithia Raymond, 1924 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Ptychaspididae (Family)
 Keithia P.A. Saccardo, 1892 accepted as Didymascella Maire & P.A. Saccardo, 1903 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Hemiphacidiaceae (Family)
 Keithia Bentham, 1834 accepted as Rhabdocaulon (Bentham) Epling, 1936 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Kelea
     Kelea Merrem in Ersch & Gruber, 1818 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Kelea Schouteden, 1958 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Kelita
     Kelita Sandhouse, 1943 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Kelita A.R. Bean, 2010 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Kelleria
     Kelleria Gurney, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Kelleriidae (Family)
     Kelleria Endlicher, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)
 Kelleria Milovanovič, 1938 † accepted as Dubertretia Cox, 1965 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)
 Kelleria Tomin, 1926 accepted as Thelocarpon Nylander, 1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanoromycetidae incertae sedis (Order) > Thelocarpaceae (Family)

Kellettia
     Kellettia B.C. Seemann, 1853 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
 Kellettia Dall, 1907 accepted as Kelletia Bayle in P. Fischer, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Kellia
     Kellia Turton, 1822 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Kelliidae (Family)
     Kellia Kazantseva-Selezneva, 1980 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Actinopterygii (awaiting allocation) (Order) > Actinopterygii (awaiting allocation) (Family)

Kelloggia
 Kelloggia Mchedlidze, 1976 † accepted as Squalodon Grateloup, 1840 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Squalodontidae (Family)
     Kelloggia Torrey ex Bentham & J.D. Hooker, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Kelloggia Carriker, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Philopteridae (Family)

Kellyia
 Kellyia Bucquoy, Dautzenberg & Dollfus, 1892 accepted as Kellia Turton, 1822 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Kelliidae (Family)
     Kellyia Bagnall, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Kemas
 Kemas Gray, 1843 accepted as Pantholops Hodgson, 1834 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Kemas Ogilby, 1837 accepted as Naemorhedus Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Kemeria
     Kemeria Cuif & Ezzoubair, 1991 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Agelasida (Order) > (Family)
     Kemeria Verna & Angiolini in Verna, Angiolini, Baud, Crasquin & Nicora, 2011 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productellidae (Family)

Kempfera
 Kempfera Houstoun, 1781 accepted as Kempfera Houstoun, 1781 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
 Kempfera Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)

Kempfia
     Kempfia Weber, 1997 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Kempfia Crasquin, 2009 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bairdiidae (Family)

Kempia
     Kempia Kieffer, 1913 accepted as Atrichopogon Kieffer, 1906 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ceratopogonidae (Family)
     Kempia Sukatcheva, 2018 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Philopotamidae (Family)
     Kempia Mathews, 1912 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Kempia Preston, 1913 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Kempia Bain, 1927 † accepted as · Questionable / non-biota (fossil) (Kingdom) > Pseudofossils (Phylum) > (Class) > (Order) > (Family)

Kempiella
     Kempiella Mathews, 1913 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Kempiella Chopard, 1924 accepted as Kempiola Uvarov, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)

Kempina
 Kempina Manning, 1978 accepted as Kempella Low & Ahyong, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Stomatopoda (Order) > Squillidae (Family)
 Kempina Roewer, 1911 accepted as Hypsibunus Thorell, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)

Kendallia
 Kendallia Berg, 1953 † accepted as Kendallina Berg, 1959 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
 Kendallia Evermann & Shaw, 1927 accepted as Hemiculter Bleeker, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Kenderlichthys
     Kenderlichthys Kazantzeva-Selezneva, 1977 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Osteichthyes (awaiting allocation) (Class) > Osteichthyes (awaiting allocation) (Order) > Osteichthyes (awaiting allocation) (Family)
     Kenderlichthys Kazantseva-Selezneva, 1980 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Actinopterygii (awaiting allocation) (Order) > Actinopterygii (awaiting allocation) (Family)

Kendrickia
     Kendrickia Solem, 1985 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
     Kendrickia Hoare, 2008 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Palaeocopida (awaiting allocation) (Family)
     Kendrickia J.D. Hooker in Bentham & J.D. Hooker, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Kenella
     Kenella Levinsen, 1909 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Flustridae (Family)
 Kenella K.B. Korde, 1973 † accepted as Zheleznaya E.A. Molinari-Novoa & M.D. Guiry, 2021 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Zheleznayaceae (Family)
     Kenella V.A. Samylina, 1968 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida (awaiting allocation) (Order) > (Family)

Kenia
     Kenia Preston, 1911 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Subulinidae (Family)
     Kenia Malloch, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)

Kennedya
 Kennedya accepted as Kennedia Ventenat, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Kennedya Tillyard, 1925 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Kennedyidae (Family)

Kennethia
     Kennethia Giordani Soika, 1995 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Kennethia De Deckker, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Notodromadidae (Family)
 Kennethia Smolis & Skarżyński, 2013 accepted as Tetrakennethia Ceccolini & Cianferoni, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Onychiuridae (Family)

Kentia
     Kentia J. Schiller, 1953 · Protozoa (Kingdom) > Choanozoa (Phylum) > Choanoflagellatea (Class) > Craspedida (Order) > Salpingoecidae (Family)
     Kentia Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Kentia Blume, 1838 accepted as Hydriastele H. Wendland & Drude, 1875 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Kentia Blume, 1830 accepted as Hydriastele H. Wendland & Drude, 1875 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Kentrophyllum
     Kentrophyllum Petz, Song & Wilbert, 1995 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Pleurostomatida (Order) > Kentrophyllidae (Family)
 Kentrophyllum Necker ex A.P. de Candolle, 1810 accepted as Carthamus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Kentrosphaera
 Kentrosphaera A. Borzì, 1883 accepted as Scotinosphaera Klebs, 1881 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Scotinosphaerales (Order) > Scotinosphaeraceae (Family)
 Kentrosphaera Volkens ex Gilg in Engler & Prantl, 1897 accepted as Volkensinia Schinz, 1912 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Kenyanella
     Kenyanella Levasseur, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Kenyanella Levasseur, 1965 accepted as Kenyanella Levasseur, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Kephyes
     Kephyes Keferstein & Ehlers, 1860 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Clausophyidae (Family)
     Kephyes Pugh, 2006 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Clausophyidae (Family)

Keppleria
 Keppleria C.F.P. Martius ex Endlicher, 1837 accepted as Bentinckia A. Berry ex Roxburgh, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Keppleria C.F. Meisner, 1842 accepted as Oncosperma Blume, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Keraiophorus
 Keraiophorus Pomel, 1883 accepted as Keraiophorus Michelin, 1862 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Arbacioida (Order) > Arbaciidae (Family)
 Keraiophorus Michelin, 1862 accepted as Coelopleurus L. Agassiz, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Arbacioida (Order) > Arbaciidae (Family)

Kerbia
     Kerbia Aristov, 2008 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Grylloblattodea (Order) > Grylloblattodea (awaiting allocation) (Family)
     Kerbia P.N. Kolosov & V.A. Rudavskaja in Kolosov, 1984 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Kercomya
     Kercomya Agassiz, 1838 † accepted as Kercomya Agassiz, 1838 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Laternulidae (Family)
     Kercomya Gressly, 1838 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Laternulidae (Family)

Kerguelenella
 Kerguelenella Ruffo, 1970 † accepted as Kergueleniola Ruffo, 1974 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Bogidiellidae (Family)
 Kerguelenella Powell, 1946 accepted as Siphonaria G. B. Sowerby I, 1823 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora incertae sedis (Order) > Siphonariidae (Family)

Kerguelenia
     Kerguelenia Stebbing, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Kergueleniidae (Family)
 Kerguelenia Mabille & Rochebrune, 1889 accepted as Kerguelenella Powell, 1946 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora incertae sedis (Order) > Siphonariidae (Family)

Kernera
 Kernera Willdenow, 1806 accepted as Posidonia König, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Posidoniaceae (Family)
     Kernera Medikus, 1792 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Kernera Schrank, 1786 accepted as Kernera Schrank, 1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Kerneria
 Kerneria Meyl, 1960 accepted as Koerneria Meyl, 1960 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Diplogasterida (Order) > Diplogasteridae (Family)
     Kerneria Moench, 1794 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Kernia
     Kernia Nieuwland, 1916 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Microascales (Order) > Microascaceae (Family)
 Kernia Thirumalachar, 1947 accepted as Kernella Thirumalachar, 1949 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Kerona
 Kerona Müller, 1786 accepted as Stylonychia Ehrenberg, 1832 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Oxytrichidae (Family)
     Kerona Ehrenberg, 1835 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Keronidae (Family)

Kerremansia
     Kerremansia Péringuey, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Kerremansia Obenberger, 1920 accepted as Kerremansella Obenberger, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Kerria
     Kerria Beddard, 1892 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
     Kerria Targioni-Tozzetti, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Kerriidae (Family)
     Kerria A.P. de Candolle, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Kerria Michaelsen, 1926 accepted as Eukerria Michaelsen, 1935 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Ocnerodrilidae (Family)

Kessleria
     Kessleria Nowicki, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Yponomeutidae (Family)
 Kessleria Bogdanov, 1882 accepted as Pseudoscaphirhynchus Nikolskii, 1900 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Acipenseriformes (Order) > Acipenseridae (Family)
 Kessleria Lichtenstein, 1886 accepted as Pemphigus Hartig, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Kettnerites
     Kettnerites Žebera, 1936 † (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Kettnerites Žebera, 1935 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta incertae sedis (Family)

Ketupa
     Ketupa Lesson, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
 Ketupa Agassiz, 1846 accepted as Ketupa Lesson, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)

Keyacris
 Keyacris Ronderos & Cigliano, 1991 accepted as Keyopsis Ronderos & Cigliano, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Keyacris Rehn, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Morabidae (Family)

Keyserlingia
     Keyserlingia Cambridge, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Keyserlingia Pander, 1861 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Acrotretida (Order) > Ceratretidae (Family)
 Keyserlingia Bunge ex Boissier, 1872 accepted as Sophora Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Khalfinella
     Khalfinella Skarlato & Starobogatov, 1979 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Khalfinella Muromzeva, 1973 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Khalfinella Elkin, 1964 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)

Khasia
     Khasia Marshall & de Muizon, 1988 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Microbiotheria (Order) > Microbiotheriidae (Family)
     Khasia Jacoby, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Kheilia
 Kheilia Obenberger, 1925 accepted as Ectingonia Spinola, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Kheilia Bolivar, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Kiaeria
     Kiaeria Glebovskaja, 1949 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Leperditicopida (Order) > Leperditicopida (awaiting allocation) (Family)
     Kiaeria I. Hagen, 1915 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Dicranaceae (Family)

Kickxia
     Kickxia Dumortier, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
 Kickxia C.L. von Blume, 1849 accepted as Kibatalia G. Don, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Kidderia
     Kidderia Raabe, 1934 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Kidderia Dall, 1876 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cyamiidae (Family)

Kiefferia
     Kiefferia Mik, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Kiefferia Kunstler & Chaine, 1902 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)
 Kiefferia Ashmead, 1903 accepted as Kiefferiella Ashmead, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Liopteridae (Family)

Kielania
     Kielania Vanek, 1963 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Harpetida (Order) > Harpetidae (Family)
     Kielania Vanek, 1961 † accepted as Kielania Vanek, 1963 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Harpetida (Order) > Harpetidae (Family)
     Kielania Apollonov, 1968 † accepted as Kielania Apollonov, 1968 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Kieneria
 Kieneria Maugé, 1984 accepted as Eleotris Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiiformes (Order) > Eleotridae (Family)
     Kieneria Bonaparte, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Kilianina
     Kilianina Pfender, 1933 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Textulariida (Order) > Paravalvulinidae (Family)
 Kilianina Pfender, 1936 † accepted as Kilianina Pfender, 1933 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Textulariida (Order) > Paravalvulinidae (Family)
 Kilianina Pfender, 1935 † accepted as Kilianina Pfender, 1933 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Textulariida (Order) > Paravalvulinidae (Family)

Kilifia
     Kilifia De Lotto, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coccidae (Family)
 Kilifia Baert & Murphy, 1987 accepted as Kilifina Baert & Murphy, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Mysmenidae (Family)

Kimberia
 Kimberia Cotton & Woods, 1935 accepted as Turritellopsis G.O. Sars, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Aclididae (Family)
     Kimberia Dennis-Bryan & Miles, 1983 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)
 Kimberia Glaessner & Wade, 1966 † accepted as Kimberella Wade, 1972 † · Animalia (Kingdom) > Vendobionta (Phylum) > (Class) > Aspidellomorpha (Order) > (Family)

Kimberleya
     Kimberleya Pillai, 2009 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)
     Kimberleya Weise, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Kimosina
     Kimosina Rohácek, 1982 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
     Kimosina Rohácek, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Kindia
     Kindia Barnard, 1962 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)
     Kindia M. Cheek in Cheek et al., 2018 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Kingaspidoides
     Kingaspidoides Hupé, 1952 † accepted as Kingaspidoides Hupé, 1952 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)
     Kingaspidoides Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)

Kingaspidoïdes
 Kingaspidoïdes Hupé, 1953 † accepted as Kingaspidoides Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)
     Kingaspidoïdes Hupé, 1952 † accepted as Kingaspidoides Hupé, 1952 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)

Kingaspis
     Kingaspis Kobayashi, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)
 Kingaspis Hupé, 1953 † accepted as Kingaspis Kobayashi, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)

Kingella
 Kingella Van Tieghem, 1895 accepted as Trithecanthera Van Tieghem, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)
     Kingella Savage, 1971 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)
     Kingella Henriksen & Bøvre, 1976 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Betaproteobacteria (Class) > Neisseriales (Order) > Neisseriaceae (Family)

Kingia
 Kingia Schloenbach, 1866 † accepted as Kingena Davidson, 1852 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Dallinidae (Family)
     Kingia Theobald, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
     Kingia Malloch, 1921 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Kingia R. Brown in P.P. King, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Dasypogonaceae (Family)

Kingiella
     Kingiella Curran, 1934 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
 Kingiella Soot-Ryen, 1957 † accepted as Reloncavia Soot-Ryen, 1969 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cyamiidae (Family)
 Kingiella Rolfe, 1917 accepted as Phalaenopsis Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Kingstonia
     Kingstonia Walcott, 1924 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Kingstoniidae (Family)
 Kingstonia J.D. Hooker & T. Thomson in J.D. Hooker, 1872 accepted as Dendrokingstonia S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Annonaceae (Family)
     Kingstonia S.F. Gray, 1821 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)

Kinkaidia
     Kinkaidia Esaton, 1945 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Polycoeliidae (Family)
     Kinkaidia Thein & Nitecki, 1974 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Microdomatidae (Family)

Kiotina
 Kiotina Okamoto, 1912 accepted as Gibosia Okamoto, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlidae (Family)
     Kiotina Klapálek, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlidae (Family)

Kippistia
     Kippistia F. von Mueller, 1858 accepted as Minuria A.P. de Candolle, 1836 (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Kippistia Miers, 1872 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Kirbya
     Kirbya Lepeletier, 1841 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Kirbya Melichar, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)
     Kirbya Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Kirbyella
     Kirbyella Kirkaldy, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)
     Kirbyella Bolivar, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Kirbyella C. Zeliff, 1930 · Protozoa (Kingdom) > Metamonada (Phylum) > Anaeromonadea (Class) > Oxymonadida (Order) > Oxymonadidae (Family)

Kirbynia
     Kirbynia Grassé & Hollande, 1950 · Protozoa (Kingdom) > Metamonada (Phylum) > Trichomonadea (Class) > Cristamonadida (Order) > Devescovinidae (Family)
     Kirbynia Navás, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)

Kirchenpaueria
     Kirchenpaueria Kirchenpauer, 1869 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
     Kirchenpaueria Jickeli, 1883 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Kirchenpaueriidae (Family)

Kirchneria
 Kirchneria F. Hindák, 1988 accepted as Pseudokirchneriella F. Hindák, 1990 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Selenastraceae (Family)
     Kirchneria C.F.W. Braun, 1854 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Kirchneriella
     Kirchneriella Frýda, 2000 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Gosseletinidae (Family)
     Kirchneriella Schmidle, 1893 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Selenastraceae (Family)

Kirgisella
     Kirgisella Martynov, 1925 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Osmylitidae (Family)
     Kirgisella Beklemischev, 1927 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Provorticidae (Family)

Kiriakoffia
     Kiriakoffia Nakamura, 1974 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Kiriakoffia de Toulgoët, 1978 accepted as Kiriakoffalia de Toulgoët, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Kirkella
     Kirkella Gunnell, 1933 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Kirkella Kobayashi, 1942 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphidae (Family)

Kirkia
     Kirkia Pollonera, 1909 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Kirkia G.L. Benny, 1995 accepted as Kirkomyces Benny, 1996 · Fungi (Kingdom) > Zygomycota (Phylum) > Mucoromycetes (Class) > Mucorales (Order) > Mucoraceae (Family)
     Kirkia Gedoelst, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
     Kirkia D. Oliver, 1868 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Kirkiaceae (Family)
 Kirkia Nogueira, López & Rossi, 2004 accepted as Aracia Nogueira, Fitzhugh & Rossi, 2010 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Sabellidae (Family)

Kishinouyea
 Kishinouyea Ôuchi, 1938 accepted as Kishinouyeum Ôuchi, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)
 Kishinouyea Mayer, 1910 accepted as Calvadosia James-Clark, 1863 · Animalia (Kingdom) > Cnidaria (Phylum) > Staurozoa (Class) > Stauromedusae (Order) > Kishinouyeidae (Family)

Kiskeya
     Kiskeya Konstantinov & Chamorro-Lacayo, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Kiskeya Weirauch & Forero, 2007 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Kisselevia
     Kisselevia Skvortzov, 1969 · Chromista (Kingdom) > Cryptista (Phylum) > Cryptophyceae (Class) > Cryptomonadales (Order) > Cryptomonadaceae (Family)
 Kisselevia T.F. Vozzhennikova, 1963 ex T.F. Vozzhennikova, 1967 † accepted as Rhombodinium H. Gocht, 1955 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)

Kitchingia
     Kitchingia Broom & George, 1950 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Kitchingia J.G. Baker, 1881 accepted as Kalanchoe Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)

Kitsonia
 Kitsonia Gross, 1975 accepted as Kitsoniocoris Rider, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Kitsonia Eames, 1957 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneroida (awaiting allocation) (Family)

Kittlitzia
 Kittlitzia Hartlaub, 1893 accepted as Porzana Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Rallidae (Family)
     Kittlitzia Hartert, 1891 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Kivua
     Kivua Forsius, 1934 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Kivua Lugo-Ortiz & McCafferty, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)

Kiwi
     Kiwi Khalaim & Ward, 2019 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Kiwi Verheyen, 1960 accepted as Apteryx Shaw, 1813 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apterygiformes (Order) > Apterygidae (Family)

Kladognathus
     Kladognathus Rexroad, 1958 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodontophorida (Order) > Hibbardellidae (Family)
 Kladognathus Fay, 1959 † accepted as Kladognathus Rexroad, 1958 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodontophorida (Order) > Hibbardellidae (Family)

Klapalekia
     Klapalekia Botosaneanu, 1955 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Glossosomatidae (Family)
     Klapalekia Claassen, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlidae (Family)

Klattia
     Klattia J.G. Baker, 1877 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Klattia Kepner, Stirewalt & Ferguson, 1939 accepted as Opisthocystis Sekera, 1911 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Polycystididae (Family)

Klebsiella
     Klebsiella Meunier, 1908 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Protoblattoidea (Order) > Protoblattoidea (awaiting allocation) (Family)
 Klebsiella A. Pascher, 1931 accepted as Klebsina P.C. Silva, 1970 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Euglenophyceae (Class) > Euglenida (Order) > Euglenidae (Family)
     Klebsiella V.B.A. Trevisan, 1885 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Gammaproteobacteria (Class) > Enterobacterales (Order) > Enterobacteriaceae (Family)

Kleinella
     Kleinella A. Adams, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
     Kleinella Kasantsev, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)

Kleinia
 Kleinia A.L. Jussieu, 1803 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Kleinia N.J. Jacquin, 1760 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Kleinia Crantz, 1766 accepted as Combretum Loefling, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)
 Kleinia Gray, 1851 accepted as Brissopsis L. Agassiz, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Brissidae (Family)
     Kleinia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Kleiniella
     Kleiniella Franzé, 1894 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Phacotaceae (Family)
     Kleiniella Aulmann, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Kliella
     Kliella Schäfer, 1945 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Kliellidae (Family)
 Kliella Hicks & Schriever, 1983 accepted as Klieosoma Hicks & Schriever, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Ectinosomatidae (Family)

Klimaszewskia
     Klimaszewskia Szelegiewicz, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Klimaszewskia Yin & Zhang, 2021 accepted as Klimaszewskityrus Yin & Zhang, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Klingerella
 Klingerella Cooper, 1999 † accepted as Mesoturrilites † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Klingerella Dingle, 1981 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Klinzigia
 Klinzigia Niculescu, 1977 accepted as Graphium Scopoli, 1777 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)
     Klinzigia Lehrer, 1970 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)

Kliopsyllus
 Kliopsyllus Apostolov & Marinov, 1988 accepted as Emertonia Wilson, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Paramesochridae (Family)
     Kliopsyllus Kunz, 1962 accepted as Emertonia Wilson, 1932 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Paramesochridae (Family)

Kloedenia
     Kloedenia H.R. Göppert, 1839 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fagales (Order) > Fagaceae (Family)
     Kloedenia Jones & Holl, 1886 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Kloedeniidae (Family)

Klonostricha
     Klonostricha Jankowski, 1979 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Holostichidae (Family)
     Klonostricha Vuxanovici, 1963 accepted as Klonostricha Jankowski, 1979 (nomen nudum)· Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Holostichidae (Family)

Klossia
     Klossia Ridley, 1909 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Klossia Schneider, 1875 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Adeleida (Order) > Adeleidae (Family)
     Klossia Curran, 1931 accepted as Eosmallota Thompson, Wyatt & Mengual, 2018 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Klossiella
     Klossiella Smith & Johnson, 1902 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Eucoccidiida (Order) > Klossiellidae (Family)
     Klossiella Cordeira, 1981 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Hystrignathidae (Family)
 Klossiella Gonçalves da Costa, 1960 accepted as Klossinemella Gonçalves da Costa, 1961 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Atractidae (Family)

Klossnema
     Klossnema Cordeira, 1981 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Hystrignathidae (Family)
 Klossnema da Silva Cordeiro & de Toledo Artigas, 1986 accepted as Klossnema Cordeira, 1981 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Hystrignathidae (Family)

Klugea
     Klugea Filipjev, 1927 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Enoplida (Order) > Phanodermatidae (Family)
     Klugea Anfrosova, 1965 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Stenolaemata (awaiting allocation) (Order) > Stenolaemata (awaiting allocation) (Family)

Klugia
 Klugia Tutt, 1907 accepted as Tuttiola Strand, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
 Klugia D.F.L. Schlechtendal, 1833 accepted as Rhynchoglossum Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Klugia Robineau-Desvoidy, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Klukia
     Klukia M. Raciborski, 1890 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Schizaeales (Order) > Klukiaceae (Family)
     Klukia Andrzejowski ex Besser, 1822 accepted as Neotorularia I.C. Hedge & J. Léonard in J. Léonard, 1986 (unavailable name)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Knappia
     Knappia Nye, 1975 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Knappia J.E. Smith in J.E. Smith & Sowerby, 1803 accepted as Mibora Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Kneiffia
 Kneiffia Spach, 1835 accepted as Oenothera Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)
 Kneiffia E.M. Fries, 1836 accepted as Hypoderma G. De Notaris, 1847 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Rhytismatales (Order) > Rhytismataceae (Family)

Kneiffiella
 Kneiffiella Underwood, 1897 accepted as Hypoderma G. De Notaris, 1847 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Rhytismatales (Order) > Rhytismataceae (Family)
 Kneiffiella P.A. Karsten, 1889 accepted as Hyphodontia J. Eriksson, 1958 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Hymenochaetales (Order) > Schizoporaceae (Family)

Kneria
     Kneria Karatajute-Talimaa, 1997 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Kneria Steindachner, 1866 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gonorynchiformes (Order) > Kneriidae (Family)

Knightia
 Knightia Longstaff, 1933 † accepted as Knightella Longstaff, 1933 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Coenogastropoda incertae sedis (Order) > Palaeostylidae (Family)
     Knightia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Knightia Jordan, 1907 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Clupeidae (Family)

Knightiella
     Knightiella Ahmad & Khan, 1980 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Knightiella Carvalho & Drake, 1943 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Knightiella J. Müller Arg., 1886 accepted as Icmadophila Trevisan, 1852-1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Pertusariales (Order) > Icmadophilaceae (Family)

Knightiophyllum
 Knightiophyllum E.W. Berry, 1916 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Knightiophyllum Ettingshausen, 1887 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)

Knightites
     Knightites Saporta in Heer, 1861 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Knightites Moore, 1941 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Bellerophontidae (Family)

Kniphofia
     Kniphofia Moench, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asphodelaceae (Family)
 Kniphofia Scopoli, 1777 accepted as Terminalia Linnaeus, 1767 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)

Knowltonella
     Knowltonella Wray, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Hypogastruridae (Family)
     Knowltonella E.W. Berry, 1911 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Gleicheniales (Order) > Matoniaceae (Family)

Knowltonia
 Knowltonia R.A. Salisbury, 1796 accepted as Anemone Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)
 Knowltonia Fisher, 1935 accepted as Chrysobothris Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Knutsonia
 Knutsonia Verbeke, 1964 accepted as Ilione Haliday in Curtis, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)
 Knutsonia Barkalov, 2012 accepted as Sphaerophoria Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Knysna
     Knysna Bassi, 1999 accepted as Bassiknysna Kemal & Koçak, 2005 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Knysna Péringuey, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Koala
 Koala Schinz, 1821 accepted as Phascolarctos Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Phascolarctidae (Family)
     Koala Berthold in Latreille, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Vombatidae (Family)

Kobayashella
     Kobayashella Ivshin, 1962 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
     Kobayashella Ivshin, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Kobayasia
 Kobayasia Lange-Bertalot, 1996 accepted as · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Naviculaceae (Family)
     Kobayasia S. Imai & A. Kawamura, 1958 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Phallales (Order) > Phallaceae (Family)

Kobeltipaludina
     Kobeltipaludina Tchernogorenko & Starobogatov in Chernogorenko, 1988 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Kobeltipaludina Chernogorenko & Starobogatov, 1987 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Kobus
     Kobus Smith, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Kobus E. Kaempfer ex R.A. Salisbury, 1807 accepted as Magnolia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Magnoliaceae (Family)

Kobya
     Kobya Gregory, 1900 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Scleractinia (Order) > Microsolenidae (Family)
 Kobya Loriol, 1901 † accepted as Bruntrutia Cossmann, 1902 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Arcticidae (Family)

Kochia
 Kochia Oudemans, 1900 accepted as Xenillus Robineau-Desvoidy, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Xenillidae (Family)
 Kochia A.W. Roth, 1801 accepted as Bassia Allioni, 1766 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Kochia Héjjas, 1894 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
 Kochia Kamohara, 1960 accepted as Kochichthys Kamohara, 1961 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pinguipedidae (Family)
     Kochia Frech, 1891 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterioida (awaiting allocation) (Family)
 Kochia Pallary, 1900 accepted as Myosotella Monterosato, 1906 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)

Kochina
     Kochina Resser, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Alokistocaridae (Family)
 Kochina Spath, 1936 † accepted as Laugeites Spath, 1936 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)

Koehleraster
 Koehleraster Fisher, 1922 accepted as Diplasterias Perrier, 1888 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)
     Koehleraster Lambert & Thiéry, 1921 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Holectypoida (Order) > Echinoneidae (Family)

Koellikeria
     Koellikeria Regel, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Koellikeria L. Agassiz, 1862 accepted as Koellikerina Kramp, 1939 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Bougainvilliidae (Family)
 Koellikeria Mingazzini, 1891 accepted as Lecudina Mingazzini, 1891 · Chromista (Kingdom) > Miozoa (Phylum) > Paragregarea (Class) > Velocida (Order) > Lecudinidae (Family)
     Koellikeria Cobbold, 1860 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Didymozoidae (Family)

Koelreuteria
 Koelreuteria F.K. Medikus, 1782 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Koelreuteria Laxmann, 1772 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Koenenia
 Koenenia Grassi, 1885 accepted as Eukoenenia Börner, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Palpigradi (Order) > Eukoeneniidae (Family)
     Koenenia Haas, 1889 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Koenenia Beushausen, 1884 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Nuculida (Order) > Nuculida (awaiting allocation) (Family)
 Koenenia Holzapfel, 1888 † accepted as Beisselia Holzapfel, 1889 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Koenigia
     Koenigia Linnaeus, 1767 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)
     Koenigia Salter, 1865 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Koenigia Pomel, 1883 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Koenigia T.E. von Post & C.E.O. Kuntze accepted as Lobularia Desvaux, 1815 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Kogania
     Kogania Cobos, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Kogania Cobos, 1980 accepted as Kogania Cobos, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Kohleria
     Kohleria Regel, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Kohleria Regel, 1851 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Kokenia
     Kokenia Holzapfel, 1895 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Anarcestida (Order) > Anarcestida (awaiting allocation) (Family)
 Kokenia Ulrich & Scofield, 1897 † accepted as Kokenospira Bassler, 1915 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Bucaniidae (Family)

Kokeniella
     Kokeniella Reitter, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Kokeniella Koken, 1897 † accepted as Kokenella Kittl, 1891 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Porcelliidae (Family)

Kokia
     Kokia K. Perch-Nielsen, 1988 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Braarudosphaerales (Order) > (Family)
     Kokia Lewton, 1912 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Kolbea
 Kolbea D.F.L. Schlechtendal, 1826 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Kolbea Enderlein, 1901 accepted as Kolbia Bertkau, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Amphipsocidae (Family)

Kolbia
     Kolbia Bertkau, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Amphipsocidae (Family)
     Kolbia Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Kolbia Palisot de Beauvois, 1820 accepted as Adenia Forsskål, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)

Kollaria
 Kollaria Pictet, 1841 accepted as Pteronarcys Newman, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Pteronarcyidae (Family)
 Kollaria Tutt, 1907 accepted as Superflua Strand, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)

Kolleria
 Kolleria K.B. Presl, 1831 accepted as Galenia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Kolleria Théry, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Kollikeria
 Kollikeria Cobbold, 1860 accepted as Koellikeria Cobbold, 1860 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Didymozoidae (Family)
 Kollikeria Agassiz, 1862 accepted as Koellikeria Cobbold, 1860 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Didymozoidae (Family)
 Kollikeria Mingazzini, 1891 accepted as Lecudina Mingazzini, 1891 · Chromista (Kingdom) > Miozoa (Phylum) > Paragregarea (Class) > Velocida (Order) > Lecudinidae (Family)

Köllikeria
     Köllikeria Mingazzini, 1891 accepted as Koellikeria Mingazzini, 1891 (misspelling - incorrect original spelling)· Chromista (Kingdom) > Miozoa (Phylum) > Paragregarea (Class) > Velocida (Order) > Lecudinidae (Family)
 Köllikeria Cobbold, 1860 accepted as Koellikeria Cobbold, 1860 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Didymozoidae (Family)
 Köllikeria Agassiz, 1862 accepted as Koellikerina Kramp, 1939 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Bougainvilliidae (Family)

Kolposaurus
     Kolposaurus Skuphos, 1893 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Kolposaurus Camp, 1942 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Kolwezia
     Kolwezia Levasseur, 1966 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Kolwezia Levasseur, 1965 † accepted as Kolwezia Levasseur, 1966 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Kolymella
     Kolymella V.A. Samylina & G.G. Filippova, 1970 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)
     Kolymella Chugaeva, 1973 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)
     Kolymella Chugaeva, 1972 † accepted as Kolymella Chugaeva, 1973 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)

Kolymoceras
     Kolymoceras Zhuravleva in Zhuravleva & Protopopov, 1995 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Kolymoceras Dagis, 1970 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Koma
     Koma Distant, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)
     Koma Gray, 1842 accepted as Koma Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Komarovia
 Komarovia E.P. Korovin, 1939 accepted as Komaroviopsis A.B. Doweld, 2021 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Komarovia Grytsenko, 2016 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Kondoa
     Kondoa Baker, 1941 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Trochomorphidae (Family)
     Kondoa Y. Yamada, Y. Nakagawa & I. Banno, 1989 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricostilbomycetes (Class) > Agaricostilbales (Order) > Kondoaceae (Family)

Konenia
 Konenia Haas, 1889 accepted as Koenenia Haas, 1889 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Konenia K. Hara, 1913 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Koninckia
     Koninckia Milne-Edwards & Haime, 1849 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Koninckia Woodward, 1854 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Kontikia
     Kontikia Novojilov, 1958 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Branchiopoda (awaiting allocation) (Order) > Branchiopoda (awaiting allocation) (Family)
     Kontikia Froehlich, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Tricladida (Order) > Geoplanidae (Family)

Kophosphaera
     Kophosphaera Attems, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)
     Kophosphaera Attems, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Kopsia
 Kopsia Dumortier, 1822 accepted as Kopsia Dumortier, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Orobanchaceae (Family)
     Kopsia Blume, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Koraia
     Koraia Herz, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Koraia S. Ôishi, 1931 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pteridospermopsida (awaiting allocation) (Order) > Pteridospermopsida (awaiting allocation) (Family)

Koreanopsis
 Koreanopsis Kwon & Lee, 1979 accepted as Bhatia Distant, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Koreanopsis Kwon & Chang, 1979 accepted as Bhatia Distant, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Koreanosaurus
     Koreanosaurus Huh, Lee, Kim, Lim & Godefroit, 2011 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Ornithischia (Order) > Ornithopoda incertae sedis (Family)
     Koreanosaurus Kim, 1979 † accepted as Koreanosaurus Kim, 1979 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Dromaeosauridae (Family)

Korenia
     Korenia Danielssen, 1890 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hexacorallia (Class) > Actiniaria (Order) > Hormathiidae (Family)
 Korenia Friele, 1877 accepted as Gibbula Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)

Korin
     Korin Gray, 1872 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Korin Sclater & Thomas, 1898 accepted as Eudorcas Fitzinger, 1869 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Korotnewia
     Korotnewia Kožov, 1936 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
 Korotnewia Poléjaeff, 1889 accepted as Pseudoceratina Carter, 1885 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Verongiida (Order) > Pseudoceratinidae (Family)

Korovinia
     Korovinia Nevski & Vvedensky, 1937 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Korovinia accepted as Korovina Iredale, 1918 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vanikoridae (Family)

Kotchubaea
 Kotchubaea E.A. von Regel ex G. Bentham & J.D. Hooker, 1873 accepted as Kutchubaea Fischer ex A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Kotchubaea Fisch. ex A.P. de Candolle accepted as Kutchubaea Fischer ex A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Kotujella
     Kotujella Rasnitsyn, 1975 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Aulacidae (Family)
     Kotujella Andreeva, 1962 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Chileata (Class) > Chileida (Order) > Matutellidae (Family)

Kovacsia
     Kovacsia Senowbari-Daryan, Kovács & Velledits, 2011 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Sphinctozoa (Order) > Thaumastocoeliidae (Family)
     Kovacsia Nordsieck, 1993 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Hygromiidae (Family)

Kovalevskiella
     Kovalevskiella R.V. Kamelin in T.A. Adylov & T.I. Zuckerwanik, 1993 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Kovalevskiella Klein, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Limnocytheridae (Family)

Kowalewskia
     Kowalewskia Turczaninow, 1859 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Clethraceae (Family)
 Kowalewskia Fol, 1874 accepted as Kowalewskia Fol, 1874 · Animalia (Kingdom) > Chordata (Phylum) > Urochordata (awaiting allocation) (Class) > Urochordata (awaiting allocation) (Order) > Urochordata (awaiting allocation) (Family)

Kowarzia
     Kowarzia Thalhammer, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
     Kowarzia Mik, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)

Kozhowia
     Kozhowia Vasiljeva & Smirnov, 1969 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Branchiopoda (awaiting allocation) (Order) > Branchiopoda (awaiting allocation) (Family)
     Kozhowia M.S. Kulikowskiy & H. Lange-Bertalot in Kulikovskiy, Lange-Bertalot, Metzeltin & Witkowski, 2012 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > (Order) > Bacillariophyceae incertae sedis (Family)

Kozloviella
     Kozloviella Grehan & Mielke, 2018 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hepialidae (Family)
     Kozloviella A.P. Jousé, 1974 · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Kozlowskia
 Kozlowskia Stasinska, 1958 † accepted as Kozlowskiocystia Stasinska, 1969 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Auloporida (Order) > Kozlowskiocystiidae (Family)
     Kozlowskia Fredericks, 1933 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)

Kozlowskiella
     Kozlowskiella Pribyl, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Treposellidae (Family)
     Kozlowskiella Boucot, 1957 † (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Cyrtinopsidae (Family)

Kozurella
     Kozurella Budurov & Sudar, 1993 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodontophorida (Order) > Gondolellidae (Family)
     Kozurella Mostler, 1972 † · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Apodida (awaiting allocation) (Family)

Kraftia
     Kraftia † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Palaeocopida (awaiting allocation) (Family)
     Kraftia Shepley & Womersley, 1983 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Dumontiaceae (Family)

Kramerella
     Kramerella Trouessart, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Kramerellidae (Family)
     Kramerella Enderlein, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Krameria
 Krameria Haller, 1882 accepted as Kramerella Trouessart, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Kramerellidae (Family)
     Krameria Loefling, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zygophyllales (Order) > Krameriaceae (Family)

Krantzia
 Krantzia Zacharda, 1983 accepted as Zachardaia Özdikmen, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Rhagidiidae (Family)
     Krantzia Barnard, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Oniscidae (Family)

Krantzlorryia
     Krantzlorryia André, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)
     Krantzlorryia André, 1979 accepted as Krantzlorryia André, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)

Kratochvilia
     Kratochvilia Vorontsov & Kral, 1986 accepted as Sorex Linnaeus, 1758 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Soricomorpha (Order) > Soricidae (Family)
     Kratochvilia Strand, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Mimetidae (Family)

Krausella
     Krausella Ulrich, 1894 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda incertae sedis (Order) > Krausellidae (Family)
 Krausella Carvalho, 1987 accepted as Krausella Carvalho, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Krausella H.J. Lam, 1932 accepted as Planchonella Pierre, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)

Kraussella
     Kraussella Carvalho, 1987 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Kraussella Bolivar, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Kraussia
 Kraussia C.H. Schultz-Bipontinus, 1844 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Kraussia Dana, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)
     Kraussia W.H. Harvey, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Kraussia Davidson, 1852 accepted as Kraussina Davidson in Suess, 1859 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Kraussinidae (Family)

Krebsia
 Krebsia Mörch, 1877 accepted as Hipponix Defrance, 1819 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Capulidae (Family)
 Krebsia Guppy, 1895 accepted as Rhynchocheila Shuttleworth, 1877 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Helicinidae (Family)
 Krebsia Ecklon & Zeyher, 1836 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Krebsia McCulloch, 1977 accepted as Krebsina McCulloch, 1981 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Polymorphinidae (Family)
 Krebsia Harvey, 1868 accepted as Stenostelma Schlechter, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Kremeria
 Kremeria Cosson & Durieu de Maisonneuve ex Cosson, 1856 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Kremeria Durieu de Maisonneuve, 1846 accepted as Leucanthemum P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Kribioxenus
     Kribioxenus Kieffer, 1921 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Kribioxenus auct., non Kieffer, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Kriegeria
 Kriegeria F. von Höhnel, 1914 accepted as Rutstroemia P.A. Karsten, 1871 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Rutstroemiaceae (Family)
 Kriegeria Rabenhorst, 1876 accepted as Rutstroemia P.A. Karsten, 1871 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Rutstroemiaceae (Family)
 Kriegeria Rabenhorst, 1876 ex F.J. Seaver, 1943 accepted as Rutstroemia P.A. Karsten, 1871 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Rutstroemiaceae (Family)
     Kriegeria Bresadola, 1891 · Fungi (Kingdom) > Basidiomycota (Phylum) > Microbotryomycetes (Class) > Kriegeriales (Order) > Kriegeriaceae (Family)
     Kriegeria Ashmead, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Kristanella
     Kristanella Krainer & Mostler, 1997 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Kristanella Schornikov, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bythocytheridae (Family)

Kroemmelbeinia
 Kroemmelbeinia Mostafawi, 1983 † accepted as Kroemmelbeinella Mostafawi, 1984 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Podocopida (awaiting allocation) (Family)
     Kroemmelbeinia Schallreuter, 1969 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Podocopida (awaiting allocation) (Family)

Krohnia
     Krohnia Quatrefages, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)
 Krohnia Langerhans, 1880 accepted as Eukrohnia Ritter-Záhony, 1909 · Animalia (Kingdom) > Chaetognatha (Phylum) > Sagittoidea (Class) > Phragmophora (Order) > Eukrohniidae (Family)

Krombholzia
 Krombholzia P.A. Karsten, 1881 accepted as Leccinum S.F. Gray, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Boletaceae (Family)
 Krombholzia Ruprecht ex E.P.N. Fournier, 1876 accepted as Zeugites P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Kronia
 Kronia Miranda Ribeiro, 1915 accepted as Odontesthes Evermann & Kendall, 1906 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Atherinidae (Family)
 Kronia Kinberg, 1865 accepted as Krohnia Quatrefages, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)

Kroyea
 Kroyea Stebbing, 1906 accepted as Kroyera Bate, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oedicerotidae (Family)
 Kroyea Bate, 1862 accepted as Kroyera Bate, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oedicerotidae (Family)

Kroyeria
     Kroyeria Van Beneden, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Kroyeriidae (Family)
 Kroyeria Grube, 1864 accepted as Kroyera Bate, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oedicerotidae (Family)

Kruegeria
     Kruegeria Schmidt, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Kruegeria Scopoli, 1777 accepted as Macrolobium Schreber, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Krugeria
 Krugeria Schmidt, 1911 accepted as Kruegeria Schmidt, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Krugeria Smith-Meyer, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tenuipalpidae (Family)

Krugia
 Krugia Urban, 1893 accepted as Marlierea Cambessèdes in A.F.C.P. Saint-Hilaire, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
     Krugia Möschler, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Krumbeckia
 Krumbeckia Arkell, 1951 † accepted as Trolliceras Torrens, 1971 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Krumbeckia Diener, 1915 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)

Krylovia
     Krylovia V.A. Chachlov ex M.S. Ignatiev, 2001 † accepted as Samarospadix M.F. Neuburg, 1948 † (junior subjective synonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Vojnovskyales (Order) > Vojnovskyaceae (Family)
     Krylovia V.A. Chachlov, 1939 † accepted as Samarospadix M.F. Neuburg, 1948 † (nomen nudum)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Vojnovskyales (Order) > Vojnovskyaceae (Family)
 Krylovia B.K. Schischkin in P.N. Krylov, 1949 accepted as Aster Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Krynickia
     Krynickia Kaleniczenko, 1839 accepted as Krynickia Kaleniczenko, 1839 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Krynickia Kaleniczenko, 1851 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Kuala
     Kuala Triana, 1855 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
     Kuala Locket, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
     Kuala Durette-Desset & Krishnasamy, 1976 † · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Heligmonellidae (Family)

Kuatunia
 Kuatunia Gressitt, 1951 accepted as Kuatuniana Hua, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Kuatunia Evers, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Kubanoceras
     Kubanoceras Kakhadze & Zesashvili, 1955 † accepted as Kubanoceras Kakhadze & Zesashvili, 1955 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Kubanoceras Kakhadze & Zesashvili, 1984 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Kudoa
     Kudoa Masamune, 1930 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
     Kudoa Meglitsch, 1947 · Animalia (Kingdom) > Cnidaria (Phylum) > Myxosporea (Class) > Multivalvulida (Order) > Kudoidae (Family)

Kueichouphyllum
     Kueichouphyllum Yü, 1931 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Kueichouphyllum Yü, 1934 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Kuhitangia
     Kuhitangia Medvedev, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Kuhitangia P.N. Ovczinnikov, 1967 accepted as Acanthophyllum C.A. Meyer, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Kuhlia
 Kuhlia Kunth in Humboldt, Bonpland & Kunth, 1825 accepted as Banara Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Kuhlia Gill, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Kuhliidae (Family)
 Kuhlia Reinwardt, 1825 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianales (awaiting allocation) (Family)

Kuhnia
 Kuhnia Linnaeus, 1763 accepted as Brickellia S. Elliott, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Kuhnia Sproston, 1945 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Mazocraeidae (Family)

Kumataia
 Kumataia Habu, 1973 accepted as Atamuka Habu, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Kumataia Kiriakoff, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Kumba
     Kumba Linnavuori & Al-Ne'amy, 1983 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Kumba Marshall, 1973 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Macrouridae (Family)

Kummelia
     Kummelia Waterhouse, 1996 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Kummelia Stephenson, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Myoida (awaiting allocation) (Family)

Kummeloceras
     Kummeloceras Matsumoto, 1983 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Kummeloceras Shimanskii, 1967 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Nautilida (Order) > Nautilida (awaiting allocation) (Family)

Kummeria
 Kummeria C.F.P. von Martius ex H.G.A. Engler, 1872 accepted as Discophora Miers, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Aquifoliales (Order) > Stemonuraceae (Family)
 Kummeria C.F.P. von Martius, 1840 (?) accepted as Discophora Miers, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Aquifoliales (Order) > Stemonuraceae (Family)

Kummerowia
 Kummerowia Heidrich, 1977 † accepted as Leperditia Rouault, 1851 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Leperditicopida (Order) > Leperditiidae (Family)
 Kummerowia Adamczak, 1976 † accepted as Kummerowillina Adamczak, 1978 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Podocopida (awaiting allocation) (Family)
     Kummerowia Schindler, 1912 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Kummerowia Samoilova & Smirnova, 1960 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Kunlunia
 Kunlunia Jiang & Lin in Jiang, Zhou, Lin et al., 1995 † accepted as Kunluniacypris Kempf, 2015 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cyprididae (Family)
     Kunlunia Da & Wang, 1980 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)

Kunstleria
     Kunstleria Delage in Delage & Hérouard, 1899 (uncertain)· Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
     Kunstleria D. Prain in G. King, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Kunthia
 Kunthia Bonpland in Humboldt & Bonpland, 1813 accepted as Chamaedorea Willdenow, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Kunthia Schlüter, 1885 † · Animalia (Kingdom) > Cnidaria (Phylum) > (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)

Kuntziella
     Kuntziella Collignon, 1962, nom. nud. † accepted as Kuntziella Collignon, 1962 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Deshayesitidae (Family)
     Kuntziella Collignon, 1962 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Deshayesitidae (Family)

Kunzea
 Kunzea Leach, 1826 accepted as Bryaxis Kugelann, 1794 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Kunzea H.G.L. Reichenbach, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
     Kunzea Zetterstedt, 1837 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Kunzia
     Kunzia K.P.J. Sprengel, 1818 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
     Kunzia Wells, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Paramesochridae (Family)

Kupea
     Kupea M. Cheek & S.A. Williams in M. Cheek, S.A. Williams & M. Etuge, 2003 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Pandanales (Order) > Triuridaceae (Family)
 Kupea Bell & Bell, 1978 accepted as Kupeus Bell & Bell, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Rhysodidae (Family)
     Kupea Philpott, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Kurandella
 Kurandella Evans, 1966 accepted as Evansiana McKamey, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Kurandella Fennah, 1950 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Achilidae (Family)

Kuraspis
     Kuraspis Chernysheva, 1960 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Kuraspis Chernysheva in Petrakov, 1959 † accepted as Kuraspis Chernysheva in Petrakov, 1959 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Kurdistanius
     Kurdistanius Verhoeff, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Geophilidae (Family)
 Kurdistanius Verhoeff, 1944 accepted as Kurdistanius Verhoeff, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Geophilidae (Family)

Kurenkovia
     Kurenkovia Sokolskaya, 1969 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
     Kurenkovia Melnikova, 1981 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Kurkas
 Kurkas C.S. Rafinesque, 1838 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Kurkas Adanson, 1763 accepted as Kurkas Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Kurosawaia
     Kurosawaia Tôyama & Ohmomo, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Kurosawaia K. Hara, 1954 accepted as Elsinoe Raciborski, 1900 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Myriangiales (Order) > Elsinoaceae (Family)

Kurrimia
 Kurrimia N. Wallich ex Thwaites accepted as Bhesa Hamilton ex Arnott, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Centroplacaceae (Family)
 Kurrimia Wallich ex C.F. Meisner, 1837 accepted as Itea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Iteaceae (Family)

Kurssanovia
 Kurssanovia Pidoplichko, 1948 accepted as Fusariella P.A. Saccardo, 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Kurssanovia Kravtzev, 1955 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Kurutreron
 Kurutreron Bonaparte, 1854 accepted as Ptilinopus Swainson, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Columbidae (Family)
     Kurutreron Bonaparte, 1854, nom. nud. accepted as Ptilinopus Swainson, 1825 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Columbidae (Family)

Kurzia
     Kurzia Martens, 1870 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Jungermanniales (Order) > Lepidoziaceae (Family)
     Kurzia Dybowski & Grochowski, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Diplostraca (Order) > Chydoridae (Family)

Kuschelia
     Kuschelia China, 1962 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Peloridiidae (Family)
     Kuschelia Malaise, 1950 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Kutchirhynchia
     Kutchirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Kutchirhynchia Buckman, 1914 † accepted as Kutchirhynchia Buckman, 1917 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Kutchithyris
     Kutchithyris Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)
     Kutchithyris Buckman, 1915 † accepted as Kutchithyris Buckman, 1917 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)

Kuzinia
     Kuzinia Zachvatkin, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)
     Kuzinia Shilova, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Kuznetsovia
 Kuznetsovia Kammerer, 2006 accepted as Brachytydeus Thor, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)
 Kuznetsovia Doweld, 2016 † accepted as Kuznetsoviella Doweld, 2016 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cytheridae (Family)

Kyra
 Kyra Zanol, 2011 accepted as Zanolkyra Yang, 2017 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Kyra Gozmány, 1958 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Kytodites
 Kytodites Girard, 1877 accepted as Cytodites Mégnin, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Cytoditidae (Family)
 Kytodites Mégnin, 1877 accepted as Cytodites Mégnin, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Cytoditidae (Family)

Kytorhynus
 Kytorhynus Motschulsky, 1874 accepted as Kytorhinus Fischer de Waldheim, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Kytorhynus Fischer de Waldheim, 1809 accepted as Kytorhinus Fischer de Waldheim, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
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