Between brackets is the number of accepted species
1 Click on "-" to collapse/hide all child taxa
2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
4 Click on "+" to expand/show all child taxa
5 Click to see the taxon details page
- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Phylum Arthropoda
- Phylum Brachiopoda
- Phylum Bryozoa
- Phylum Cephalorhyncha incertae sedis
- Phylum Chaetognatha
- Phylum Chitinozoa †
- Phylum Chordata
- Subphylum Cephalochordata
- Subphylum Tunicata accepted as Urochordata
- Subphylum Urochordata
- Subphylum Vertebrata
- Superclass Tetrapoda
- Class Amphibia
- Class Aves
- Class Mammalia
- Class Mammaliaformes incertae sedis †
- Class Reptilia
- Order Aetosauria †
- Order Anapsida (awaiting allocation)
- Order Araeoscelida † represented as Araeoscelidia †
- Order Araeoscelidia †
- Order Archosauria (awaiting allocation) †
- Order Archosauria incertae sedis
- Order Archosauriformes incertae sedis †
- Order Archosauromorpha incertae sedis †
- Order Avetheropoda †
- Order Captorhinida †
- Order Chelonia accepted as Testudines
- Order Choristodera †
- Order Cotylosauria †
- Order Crocodylia
- Order Crocodyliformes incertae sedis
- Order Crocodylomorpha incertae sedis
- Order Diapsida incertae sedis †
- Order Dinosauria (awaiting allocation) †
- Order Dinosauria incertae sedis †
- Order Dinosauriformes (awaiting allocation) †
- Order Eosuchia †
- Order Eusuchia incertae sedis
- Order Herrerasauria †
- Order Huenesuchia †
- Order Hupehsuchia †
- Order Ichthyopterygia (awaiting allocation) †
- Order Ichthyosauria †
- Order Lepidosauria (awaiting allocation)
- Order Lepidosauria incertae sedis
- Order Lepidosauromorpha incertae sedis
- Order Loricata incertae sedis
- Order Mesoeucrocodylia incertae sedis
- Order Neodiapsida incertae sedis
- Order Neosuchia incertae sedis
- Order Nothosauria †
- Order Ornithischia †
- Order Parareptilia incertae sedis †
- Order Paraves incertae sedis †
- Order Pareiasauria †
- Order Pelycosauria †
- Order Placodontia †
- Order Plesiosauria †
- Order Procolophonoidea †
- Order Procolophonomorpha †
- Order Prolacertiformes †
- Order Protorosauria †
- Order Pterosauria †
- Order Pterosauromorpha incertae sedis †
- Order Rauisuchiformes †
- Order Reptilia (awaiting allocation)
- Order Reptilia incertae sedis
- Order Rhynchocephalia
- Order Rhynchosauria †
- Order Saurischia †
- Order Sauropsida (awaiting allocation) †
- Order Sauropterygia † accepted as Sauropterygia incertae sedis
- Order Sauropterygia incertae sedis
- Order Sphenodontida
- Order Squamata
- Family Acrochordidae Bonaparte, 1840
- Family Acrodonta incertae sedis
- Family Agamidae Gray, 1827
- Family Aigialosauridae Kramberger, 1892 †
- Family Amphisbaenia (awaiting allocation)
- Family Amphisbaenia incertae sedis
- Family Amphisbaenidae Gray, 1865
- Family Anguidae Gray, 1825
- Family Anguimorpha incertae sedis
- Family Aniliidae Fitzinger, 1826
- Family Anilioidea incertae sedis †
- Family Anniellidae
- Family Anomalepidae
- Family Anomalophiidae †
- Family Anomochilidae
- Family Aprasiaidae Wells, 2007 accepted as Pygopodidae Boulenger, 1884
- Family Ardeosauridae Camp, 1923 †
- Family Arretosauridae Gilmore, 1943 †
- Family Atractaspididae
- Family Bainguidae Borsuk-Bialynicka, 1984 †
- Family Barbatteiidae Codrea, Venczel & Solomon, 2017 †
- Family Bavarisauridae Kuhn, 1961 †
- Family Bipedidae
- Family Blanidae Kearney, 2003
- Family Boidae Gray, 1825
- Family Bolyeridae accepted as Bolyeriidae
- Family Bolyeriidae
- Family Booidea incertae sedis †
- Family Borioteiioidea incertae sedis †
- Family Caenophidia (awaiting allocation)
- Family Carolinidae Borsuk-Bialynicka, 1985 †
- Family Carphodactylidae Kluge, 1967
- Family Chamaeleonidae Gray, 1825
- Family Chamaeleontidae
- Family Chamopsiidae Nydam, Caldwell & Fanti, 2010 †
- Family Changjiangosauridae Hou, 1976 †
- Family Colubridae Oppel, 1811
- Family Colubroidea (awaiting allocation)
- Family Contogeniidae Nydam & Fitzpatrick, 2009 †
- Family Cordylidae Gray, 1837
- Family Corytophanidae
- Family Crotalidae
- Family Crotaphytidae
- Family Cyclocoridae Weinell & Brown, 2017
- Family Cylindrophiidae Fitzinger, 1843
- Family Dactyloidae Fitzinger, 1843
- Family Dibamidae Boulenger, 1884
- Family Dinilysiidae Romer, 1956 †
- Family Diplodactylidae Underwood, 1954
- Family Diploglossidae Boucourt, 1873
- Family Dipsadidae Bonaparte, 1840
- Family Dolichosauridae Gervais, 1852 †
- Family Dorsetisauridae Hoffstetter, 1967 †
- Family Eichstaettisauridae Kuhn, 1958 †
- Family Elapidae Boié, 1827
- Family Eolacertidae Čerňanský & Smith, 2017 †
- Family Eoxantidae Alifanov, 1993 †
- Family Erycidae Bonaparte, 1825 †
- Family Erycinidae Kuhn, 1967 accepted as Boidae Gray, 1825
- Family Euposauridae Camp, 1923 †
- Family Gekkonidae Gray, 1825
- Family Gekkoolithidae Hirsch, 1996 †
- Family Gekkota incertae sedis
- Family Gerrhosauridae
- Family Globauridae Alifanov, 2000 †
- Family Gobiguania incertae sedis †
- Family Gymnophthalmidae Fitzinger, 1826
- Genus Acratosaura Rodrigues, Pellegrino, Dixo, Verdade, Pavan, Argolo & Sites, 2007 †
- Genus Adercosaurus Myers & Donnelly, 2001
- Genus Alexandresaurus Rodrigues, Pellegrino, Dixo, Verdade, Pavan, Argolo & Sites, 2007 †
- Genus Alopoglossus Boulenger, 1885
- Genus Amapasaurus Cunha, 1970
- Genus Anadia Gray, 1845
- Genus Andinosaura Sánchez‐Pacheco et al., 2017
- Genus Anotosaura Amaral, 1932
- Genus Apatelus Amaral, 1935 accepted as Bachia Gray, 1845
- Genus Apatelus Amaral, 1937 accepted as Apatelus Amaral, 1935
- Genus Argalia Gray, 1846 accepted as Anadia Gray, 1845
- Genus Arthrosaura Boulenger, 1885
- Genus Arthroseps Boulenger, 1899
- Genus Aspidolaemus Peters, 1863
- Genus Bachia Gray, 1845
- Genus Brachypus Fitzinger, 1826
- Genus Calliscincopus Ruthven, 1916
- Genus Calyptommatus Rodrigues, 1991
- Genus Caparaonia Rodrigues, Cassimiro, Pavan, Curcio, Verdade & Machado Pellegrino, 2009
- Genus Centrosaura Vásquez-Restrepo, Ibáñez, Sánchez-Pacheco & Daza, 2020
- Genus Cercosaura Wagler, 1830
- Genus Cercosaurus Gray, 1845 accepted as Cercosaura Wagler, 1830
- Genus Cercosuarus accepted as Cercosaura Wagler, 1830
- Genus Chalcidolepis Cope, 1876
- Genus Chalcis Wagler, 1830
- Genus Colobodactylus Amaral, 1932
- Genus Colobosaura Boulenger, 1887
- Species Colobosaura kraepelini Werner, 1910
- Species Colobosaura landii Cunha, 1977 accepted as Colobosaura modesta Reinhardt & Lütken, 1862
- Species Colobosaura mentalis Amaral, 1933
- Species Colobosaura modesta Reinhardt & Lütken, 1862
- Genus Colobosauroides da Cunha, Lima-Verde & Lima, 1991
- Genus Colobus Merrem, 1820
- Genus Cophias Merrem, 1820
- Genus Cophias Gray, 1825
- Genus Dendrosauridion Lehr, Moravec, Lundberg, Kôhler, Catenazzi & Šmíd, 2019
- Genus Diastemalepis Peracca, 1896
- Genus Dryadosaura Rodrigues, Freire, Pellegrino & Sites, 2005
- Genus Echinosaura Boulenger, 1890
- Genus Ecleopus Peters, 1862 accepted as Anadia Gray, 1845
- Genus Ecpleopus Duméril & Bibron, 1839
- Genus Elaphrosaura Amaral, 1932
- Genus Emminia Gray, 1845
- Genus Emphrassotis O'Shaughnessy, 1879
- Genus Epaphelus Cope, 1876
- Genus Euspondylus Tschudi, 1845
- Genus Gonioptychus Werner, 1916 accepted as Ptychoglossus Boulenger, 1890
- Genus Gymnophthalmus Merrem, 1820
- Genus Heteroclonium Cope, 1896
- Genus Heterodactylus Spix, 1825
- Genus Heterodonium Cope, 1899
- Genus Hylosaurus Müller, 1923
- Genus Iphisa Gray, 1852
- Genus Kaieteurosaurus Kok, 2005
- Genus Kataphraktosaurus Rojas-Runjaic, Barrio-Amorós, Señaris, De La Riva & Castroviejo-Fisher, 2021
- Genus Lepidosoma Wagler, 1830
- Genus Lepisoma Gray, 1845 accepted as Leposoma Spix, 1825
- Genus Leposaura Bonaparte, 1831 accepted as Leposoma Spix, 1825
- Genus Leposoma Spix, 1825
- Genus Loxopholis Cope, 1868
- Genus Macropholidus Noble, 1921
- Genus Macropholis accepted as Macropholidus Noble, 1921
- Genus Magdalenasaura Fang, Vásquez-Restrepo & Daza, 2020
- Genus Marinussaurus Peloso, Pellegrino, Rodrigues & Ávila-Pires, 2011
- Genus Micrablepharus Böttger, 1885
- Genus Micrablepharus Dunn, 1932 accepted as Micrablepharus Böttger, 1885
- Genus Mionyx Cope, 1886
- Genus Neusticurus Duméril & Bibron, 1839
- Genus Nothobachia Trefaut Rodrigues, 1984
- Genus Opipeuter Uzzell, 1969
- Genus Oreosaurus Peters, 1862
- Genus Pantepuisaurus Kok, 2009
- Genus Pantodactylus Duméril & Bibron, 1839 accepted as Cercosaura Wagler, 1830
- Genus Perodactylus Reinhardt & Lütken, 1862 accepted as Colobosaura Boulenger, 1887
- Genus Petracola Doan & Castoe, 2005
- Genus Pholidobolus Peters, 1863
- Genus Placosoma Tschudi, 1847
- Genus Potamites Doan & Castoe, 2005
- Genus Prionodactylus O'Shaughnessy, 1881 accepted as Cercosaura Wagler, 1830
- Genus Procellosaurinus Rodrigues, 1991
- Genus Proctoporus Tschudi, 1845
- Genus Propus Cope, 1874
- Genus Psilophthalmus Rodrigues, 1991 accepted as Psilops Rodrigues, Recoder, Teixeira, Roscito, Guerrero, Sales Nunes, De Freitas, Fernandes, Bocchiglieri, Dal Vechio, Leite, Nogueira, Damasceno, Machado Pellegrino, Argôlo & Amaro, 2017
- Genus Psilops Rodrigues, Recoder, Teixeira, Roscito, Guerrero, Sales Nunes, De Freitas, Fernandes, Bocchiglieri, Dal Vechio, Leite, Nogueira, Damasceno, Machado Pellegrino, Argôlo & Amaro, 2017
- Genus Ptychoglossus Boulenger, 1890
- Genus Rhachisaurus Pellegrino, Rodrigues, Yonenaga-Yassuda & Sites, 2001
- Genus Rheosaurus Vásquez-Restrepo, Ibáñez, Sánchez-Pacheco & Daza, 2020
- Genus Riama Gray, 1859
- Genus Riolama Uzzell, 1973
- Genus Scolcecosaurus accepted as Scolecosaurus Boulenger, 1885
- Genus Scolecosaurus Boulenger, 1885
- Genus Scriptosaura Rodrigues & dos Santos, 2008
- Genus Selvasaura Moravec, Šmid, Štundl & Lehr, 2018
- Genus Stenolepis Boulenger, 1888
- Genus Teuchocercus Fritts & Smith, 1969
- Genus Thorectes Agassiz, 1846 accepted as Neusticurus Duméril & Bibron, 1839
- Genus Thorictes accepted as Neusticurus Duméril & Bibron, 1839
- Genus Thorictis Wagler, 1830 accepted as Neusticurus Duméril & Bibron, 1839
- Genus Tretioscincus Cope, 1862
- Genus Vanzosaura Rodrigues, 1991
- Genus Wilsonosaura Lehr, Moravec & von May, 2020
- Genus Yanomamia Pellegrino, Brunes, Souza, Laguna, Avila-Pires, Hoogmoed & Rodrigues, 2018
- Family Helodermatidae Gray, 1837
- Family Hoplocercidae
- Family Hydrophidae accepted as Hydrophiidae Smith, 1926
- Family Hydrophiidae Smith, 1926
- Family Hyporhinidae Baur, 1893 †
- Family Iguania incertae sedis
- Family Iguanidae Gray, 1827
- Family Isodontosauridae Alifanov, 1993 †
- Family Kuehneosauridae Romer, 1966 †
- Family Lacertibaenia incertae sedis †
- Family Lacertidae Bonaparte, 1831
- Family Lacertilia (awaiting allocation)
- Family Lacertoidea incertae sedis
- Family Lamprophiidae Fitzinger, 1843
- Family Lanthanotidae Steindachner, 1878
- Family Lanthonotidae
- Family Lapparantophiidae †
- Family Lapparentopheidae Hoffstetter, 1968 †
- Family Laticaudidae
- Family Leiosauridae
- Family Leptotyphlopidae Stejneger, 1892
- Family Loxocemidae
- Family Macrocephalosauridae Sulimski, 1975 †
- Family Macrostomata incertae sedis †
- Family Madstoiidae † accepted as Madtsoiidae Hoffstetter, 1961 †
- Family Madtsoiidae Hoffstetter, 1961 †
- Family Monstersauria incertae sedis †
- Family Mosasauria incertae sedis †
- Family Mosasauridae Gervais, 1853 †
- Family Necrosauridae Hoffstetter, 1943 †
- Family Nigerophiidae Rage, 1975 †
- Family Oligodontosauridae Estes, 1975 †
- Family Ophidia incertae sedis
- Family Opluridae
- Family Pachyophiidae Nopcsa, 1923 †
- Family Palaeopheidae Lydekker, 1888 † accepted as Palaeophiidae Lydekker, 1888 †
- Family Palaeophidae † accepted as Palaeophiidae Lydekker, 1888 †
- Family Palaeophiidae Lydekker, 1888 †
- Family Palaeovaranidae Georgalis, 2017 †
- Family Paliguanidae †
- Family Paramacellodidae Estes, 1983 †
- Family Parasaniwidae Estes, 1964 †
- Family Paravaranidae Borsuk-Bialynicka, 1984 †
- Family Pareatidae Romer, 1956 accepted as Pareidae Romer, 1956
- Family Pareidae Romer, 1956
- Family Phrynosomatidae
- Family Platynota incertae sedis
- Family Pleurodonta incertae sedis
- Family Polychrotidae
- Family Polyglyphanodontia incertae sedis †
- Family Polyglyphanodontidae Gilmore, 1942 †
- Family Polyodontobaenidae Folie, Smith & Smith, 2013 †
- Family Priscagamidae Borsuk-Białynicka & Moody, 1984 †
- Family Pygopodidae Boulenger, 1884
- Family Pythonidae Fitzinger, 1826 accepted as Boidae Gray, 1825
- Family Rhineuridae Vanzolini, 1951 †
- Family Russelophiidae †
- Family Sauria (awaiting allocation)
- Family Saurosternidae Haughton, 1924 †
- Family Scincidae Gray, 1825
- Family Scincogekkonomorpha incertae sedis
- Family Scincoidea (awaiting allocation)
- Family Scincoidea incertae sedis
- Family Scincomorpha incertae sedis
- Family Scleroglossa incertae sedis
- Family Serpentes (awaiting allocation)
- Family Serpentes incertae sedis †
- Family Shinisauridae Ahl, 1930
- Family Simoliophiidae †
- Family Sphaerodactylidae Underwood, 1954
- Family Squamata (awaiting allocation)
- Family Teiidae Gray, 1827
- Family Trogonophidae Bonaparte, 1838
- Family Trogonophiidae accepted as Trogonophidae Bonaparte, 1838
- Family Tropidophiidae Cope, 1894
- Family Tropiduridae
- Family Typhlopidae Bonaparte, 1831
- Family Uropeltidae
- Family Varanidae Hardwicke & Gray, 1824
- Family Varanoidea incertae sedis
- Family Viperidae Oppel, 1811
- Family Xantusiidae Baird, 1858
- Family Xenodermidae Gray, 1849
- Family Xenopeltidae Bonaparte, 1845
- Family Xenosauridae Cope, 1866
- Genus Aiolosaurus Gao & Norell, 2000 †
- Genus Baabdasaurus Arnold, Azar, Ineich & Nel, 2002 †
- Genus Bharatagama Evans, Prasad & Manhas, 2002 †
- Genus Bothriagenys Nydam, 2002 †
- Genus Conantophis Holman & Harrison, 2000 †
- Genus Cryptovaranoides Whiteside, Chambi-Trowell & Benton, 2022 †
- Genus Ctenomastax Gao & Norell, 2000 †
- Genus Dimekodontosaurus Nydam, 2002 †
- Genus Haasiophis Tchernov, Rieppel, Zaher, Polcyn & Jacobs, 2000 †
- Genus Hongshanxi Dong, Wang, Mou, Zhang & Evans, 2019 †
- Genus Hydrargysaurus Wick & Shiller, 2020 †
- Genus Hymenosaurus Gao & Norell, 2000 †
- Genus Indrasaurus O'Connor, Zheng, Dong, Wang, Wang, Zhang & Zhou, 2019 †
- Genus Jucaraseps Bolet & Evans, 2012 †
- Genus Megachirella Renesto & Posenato, 2003 †
- Genus Messelopython Zaher & Smith, 2020 †
- Genus Moqisaurus Dong, Wang & Evans, 2022 †
- Genus Myrmecodaptria Gao & Norell, 2000 †
- Genus Paleochelco Martinelli, Agnolín & Ezcurra, 2021 †
- Genus Parasaurillus Evans & Searle, 2002 †
- Genus Primaderma Nydam, 2000 †
- Genus Sauripes Lee, Lee, Fiorillo & Lü, 2018 †
- Genus Schillerosaurus Nydam, Chure & Evans, 2013 †
- Genus Temujinia Gao & Norell, 2000 †
- Genus Zapsosaurus Gao & Norell, 2000 †
- Order Synapsida (awaiting allocation)
- Order Synaptosauria (awaiting allocation) †
- Order Testudinata incertae sedis
- Order Testudines
- Order Tetrapodamorpha incertae sedis †
- Order Thalattosauria †
- Order Thalattosuchia †
- Order Thecodontia †
- Order Therapsida †
- Order Theriodontia †
- Order Trilophosauria †
- Order Younginiformes †
- Family Gracilisuchidae Butler, Sullivan, Ezcurra, Liu, Lecuona & Sookias, 2014 †
- Genus Anshunpes Xing, Klein, Lockley, Wu, Benton, Zeng & Romilio, 2020 †
- Genus Antarcticoolithus Legendre, Rubilar-Rogers, Musser, Davis, Otero, Vargas & Clarke, 2020 †
- Genus Archaeoraptor Sloan, 1999 †
- Genus Brittagnathus Ahlberg & Clack, 2020 †
- Genus Diploradus Clack & Smithson in Clack et al., 2017 †
- Genus Mesanerpeton Smithson & Clack, 2018 †
- Genus Ossirarus Clack & Smithson in Clack et al., 2017 †
- Genus Parmastega Beznosov, Clack, Lukševičs, Ruta & Ahlberg, 2019 †
- Genus Perittodus Clack & Smithson in Clack et al., 2017 †
- Genus Sigournea Bolt & Lombard, 2006 †
- Genus Tantallognathus Chen, Alavi, Brazeau, Blom, Millward & Ahlberg, 2017 †
- Genus Tutusius Gess & Ahlberg, 2018 †
- Genus Umzantsia Gess & Ahlberg, 2018 †
- Class Acanthodii †
- Class Actinopterygii
- Class Agnatha (awaiting allocation)
- Class Cephalaspidomorphi
- Class Chondrichthyes
- Class Conodonta †
- Class Dipnoi
- Class Dipnomorpha accepted as Dipnoi
- Class Galeaspida †
- Class Gnathostomata incertae sedis †
- Class Myxini
- Class Osteichthyes (awaiting allocation)
- Class Osteichthyes incertae sedis †
- Class Ostracodermi †
- Class Pisces (awaiting allocation)
- Class Placodermi †
- Class Pteraspidomorphi †
- Class Sarcopterygii
- Class Thelodonti †
- Genus Emmonsaspis Resser & Howell, 1938 †
- Genus Harajicadectes Choo, Holland, Clement, King, Challands, Young & Long, 2024 †
- Genus Kahamachli Malkani, 2019 †
- Genus Nuucichthys Lerosey-Aubril & Ortega-Hernández, 2024 †
- Genus Rhynchocopros Hunt, Lucas & Spielmann, 2013 †
- Genus Santamariacopros Hunt, Lucas & Spielmann, 2013 †
- Genus Squirmarius McCoy, Wittry, Sadabadi & Mayer, 2023 †
- Class Chordata (awaiting allocation)
- Class Eotetrapodiformes incertae sedis
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera
- Phylum Priapula accepted as Priapulida
- Phylum Priapulida
- Phylum Problematica † accepted as Animalia incertae sedis
- Phylum Rhombozoa
- Phylum Rotifera
- Phylum Scalidophora incertae sedis
- Phylum Sipuncula
- Phylum Tardigrada
- Phylum Trace fossils †
- Phylum Vendobionta †
- Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
- Phylum Vetulicolia †
- Phylum Vinctiplicata incertae sedis †
- Phylum Xenacoelomorpha
- Genus Trilobocaris Pribyl, 1953 †
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
| |
