Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- 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
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Class Asteroidea
- Class Asterozoa (awaiting allocation)
- Class Blastoidea †
- Class Cornuta
- Class Coronata
- Class Coronoidea †
- Class Crinoidea
- Order Ampelocrinida †
- Order Bouergueticrinida
- Order Camerata (awaiting allocation) †
- Order Cladida
- Order Cladoidea †
- Order Comatulida
- Family Antedonidae Norman, 1865
- Family Aporometridae H.L. Clark, 1938
- Family Asterometridae Gislén, 1924
- Family Atelecrinidae Bather, 1899
- Family Atopocrinidae Messing in Hess & Messing, 2011 †
- Family Calometridae A.H. Clark, 1911
- Family Charitometridae A.H. Clark, 1909
- Family Colobometridae A.H. Clark, 1909
- Family Comasteridae A.H. Clark, 1908
- Family Comatulida (awaiting allocation)
- Family Comatulidae Fleming, 1828
- Genus Actinometra Müller, 1841 accepted as Comatula Lamarck, 1816
- Genus Alloeocomatella Messing, 1995
- Genus Anneissia Summers, Messing, Rouse, 2014
- Genus Aphanocomaster Messing, 1995
- Genus Capillaster A.H. Clark, 1909
- Genus Cenolia A.H. Clark, 1916
- Genus Clarkcomanthus Rowe, Hoggett, Birtles & Vail, 1986
- Genus Comactinia A.H. Clark, 1909
- Genus Comantheria A.H. Clark, 1909 accepted as Comanthus A.H. Clark, 1908
- Genus Comanthina A.H. Clark, 1909 accepted as Comaster L. Agassiz, 1836
- Genus Comanthoides A.H. Clark, 1931 accepted as Cenolia A.H. Clark, 1916
- Genus Comanthus A.H. Clark, 1908
- Genus Comaster L. Agassiz, 1836
- Genus Comatella A.H. Clark, 1908
- Genus Comatilia A.H. Clark, 1909
- Genus Comatula Lamarck, 1816
- Genus Comatulella Clark, 1911
- Genus Comatulella Clark, 1911, nom. nud. accepted as Comatulella Clark, 1911
- Genus Comatulides A.H. Clark, 1918
- Genus Cominia A.H. Clark, 1909 accepted as Comatulides A.H. Clark, 1918
- Genus Comissia Clark, 1909
- Species Comissia chadwicki A.H. Clark, 1912
- Species Comissia dawsoni (McKnight, 1977)
- Species Comissia decumatilos (McKnight, 1977)
- Species Comissia difficilis (Carpenter, 1888) accepted as Palaeocomatella difficilis (Carpenter, 1888)
- Species Comissia dumetum A.H. Clark, 1911
- Species Comissia gillstromi (McKnight, 1977)
- Species Comissia gracilipes A.H. Clark, 1912
- Species Comissia hartmeyeri A.H. Clark, 1912 accepted as Comanthus wahlbergii (Müller, 1843)
- Species Comissia hispida A.H. Clark, 1911
- Species Comissia hiwia (McKnight, 1977) accepted as Palaeocomatella hiwia McKnight, 1977
- Species Comissia horrida (A.H. Clark, 1911)
- Species Comissia horridus (A.H. Clark, 1911) accepted as Comissia horrida (A.H. Clark, 1911)
- Species Comissia ignota A.H. Clark, 1911 accepted as Comanthus wahlbergii (Müller, 1843)
- Species Comissia imossica McKnight, 1975
- Species Comissia littoralis A.H. Clark, 1912
- Species Comissia luetkeni A.H. Clark, 1909
- Species Comissia lütkeni A.H. Clark, 1909 accepted as Comissia luetkeni A.H. Clark, 1909
- Species Comissia magnifica (Gislén, 1922)
- Species Comissia mathesoni McKnight, 1977
- Species Comissia minuta (Gislén, 1922)
- Species Comissia norfolkensis McKnight, 1977
- Species Comissia parvula A.H. Clark, 1912
- Species Comissia pectinifer A.H. Clark, 1911
- Species Comissia pectinifera (A.H. Clark, 1911) accepted as Alloeocomatella pectinifera (A.H. Clark, 1911)
- Species Comissia peregrina Bell, 1882
- Species Comissia scitulus A.H. Clark, 1911 accepted as Rowemissia scitulus (A.H. Clark, 1911)
- Species Comissia serrata Gislén, 1938
- Species Comissia spinosissima A.H. Clark, 1912
- Species Comissia venustus (A.H. Clark, 1909)
- Genus Commissia accepted as Comissia Clark, 1909
- Genus Davidaster Hoggett & Rowe, 1986
- Genus Hanshessaster Messing, 2018 †
- Genus Leptonemaster A.H. Clark, 1909 accepted as Comissia Clark, 1909
- Genus Nemaster A.H. Clark, 1909
- Genus Neocomatella A.H. Clark, 1909
- Genus Oxycomanthus Rowe, Hoggett, Birtles & Vail, 1986 accepted as Clarkcomanthus Rowe, Hoggett, Birtles & Vail, 1986
- Genus Palaeocomatella A.H. Clark, 1912
- Genus Phanogenia Lovén, 1866
- Genus Rowemissia Messing, 2001
- Family Eudiocrinidae A.H. Clark, 1907
- Family Himerometridae A.H. Clark, 1907
- Family Lakotacrinidae Hunter, Larson, Landman & Oji, 2016 †
- Family Maorimetridae Eagle, 2008 †
- Family Mariametridae A.H. Clark, 1909
- Family Notocrinidae Mortensen, 1918
- Family Pentametrocrinidae A.H. Clark, 1908
- Family Pontiometridae A.H. Clark, 1909 accepted as Colobometridae A.H. Clark, 1909
- Family Ptilometridae A.H. Clark, 1914
- Family Septocrinidae Mironov, 2000
- Family Thalassometridae A.H. Clark, 1908
- Family Thaumatocrinidae Bather, 1899 accepted as Pentametrocrinidae A.H. Clark, 1908
- Family Thiolliericrinidae Clark, 1908 †
- Family Tropiometridae A.H. Clark, 1908
- Family Zenometridae A.H. Clark, 1909
- Family Zygometridae A.H. Clark, 1908
- Order Comatulidina
- Order Crinoidea (awaiting allocation)
- Order Crinoidea incertae sedis
- Order Cyathocystida
- Order Cyclocystoidea †
- Order Cyrtocrinida
- Order Dendrocrinida
- Order Diplobathrida †
- Order Disparida
- Order Echmatocrinida †
- Order Encrinida †
- Order Hemistreptocrinida †
- Order Hybocrinida †
- Order Isocrinida
- Order Millericrinida
- Order Monobathrida
- Order Poteriocrinina †
- Order Protocrinoida †
- Order Roveacrinida †
- Order Sagenocrinida
- Order Strialata †
- Order Taxocrinida †
- Order Uintacrinida †
- Family Cyclomischidae Moore & Jeffords, 1968 †
- Family Floricyclidae Moore & Jeffords, 1968 †
- Family Leptocarphiidae Moore & Jeffords, 1968 †
- Genus Epicrinus Villanueva-Olea, Quiroz-Barroso, Quiroz-Barragán, Torres-Martínez & Sour-Tovar, 2021 †
- Class Ctenocystoidea †
- Class Cystoidea
- Class Diploporita †
- Class Echinodermata (awaiting allocation)
- Class Echinodermata incertae sedis
- Class Echinoidea
- Class Edrioasteroidea †
- Class Edrioblastoidea †
- Class Eocrinoidea †
- Class Helicoplacoidea †
- Class Holothuroidea
- Class Homoiostelea †
- Class Homostelea †
- Class Ophiocistioidea †
- Class Ophiuroidea
- Class Parablastoidea †
- Class Paracrinoidea †
- Class Rhombifera †
- Class Somasteroidea
- Class Stelleroidea
- Class Stylophora †
- Genus Anadema Meuschen, 1787
- Genus Artocrea Meuschen, 1787
- Genus Birita Meuschen, 1787
- Genus Disci-transfixus Meuschen, 1787
- Genus Galea Meuschen, 1787
- Genus Olivaeformis Meuschen, 1787
- Genus Stribilita Meuschen, 1787
- 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
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