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
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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
- Order Asteroidea (awaiting allocation)
- Order Cryptozonia †
- Order Euaxosida †
- Order Forcipulata accepted as Forcipulatida
- Order Forcipulatida
- Order Neoasteroidea (awaiting allocation)
- Order Notomyotida
- Order Paxillosida
- Order Peripoda
- Order Platyasterida
- Order Pustulosida
- Order Somasteroida †
- Order Spinulosida
- Order Trichasteropsida
- Order Uractinida †
- Order Valvatida
- Family Archasteridae Viguier, 1878
- Family Arthrasteridae Spencer, 1918 †
- Family Asterodiscididae Rowe, 1977
- Family Asteropseidae Hotchkiss & Clark, 1976
- Family Chaetasteridae Sladen, 1889
- Family Gnathasteridae Koehler, 1924 accepted as Odontasteridae Verrill, 1899
- Family Goniasteridae Forbes, 1841
- Family Gymnasteriidae accepted as Asteropseidae Hotchkiss & Clark, 1976
- Family Leilasteridae Jangoux & Aziz, 1988
- Family Linckiidae Viguier, 1878 accepted as Ophidiasteridae Verrill, 1870
- Family Mithrodiae Viguier, 1878 accepted as Mithrodiidae Viguier, 1878
- Family Mithrodidae Perrier, 1893 accepted as Mithrodiidae Viguier, 1878
- Family Neopalaeasteridae Schuchert, 1915 †
- Family Odontasteridae Verrill, 1899
- Family Ophidiasteridae Verrill, 1870
- Family Ophiodiasteridae
- Family Oreasteridae Fisher, 1911
- Genus Acheronaster H.E.S. Clark, 1982
- Species Acheronaster tumidus H.E.S. Clark, 1982
- Genus Anthaster Döderlein, 1915
- Genus Anthenea Gray, 1840
- Genus Astrosarkus Mah, 2003
- Genus Bothriaster Döderlein, 1916
- Genus Choriaster Lütken, 1869
- Genus Culcita Agassiz, 1836
- Genus Culcitaster Clark, 1915 accepted as Halityle Fisher, 1913
- Genus Goniodiscaster H.L. Clark, 1909
- Genus Goniodiscides Fisher, 1906 accepted as Culcita Agassiz, 1836
- Genus Goniodiscus Müller & Troschel, 1842 accepted as Culcita Agassiz, 1836
- Genus Gymnanthenea H.L. Clark, 1938
- Genus Gymnasterias accepted as Porania Gray, 1840
- Genus Halityle Fisher, 1913
- Genus Hosea Gray, 1866 accepted as Anthenea Gray, 1840
- Genus Hosia Gray, 1840 accepted as Anthenea Gray, 1840
- Genus Monachaster Döderlein, 1916
- Genus Nectriaster H.L. Clark, 1946
- Genus Nidorellia Gray, 1840
- Genus Oreaster Müller & Troschel, 1842
- Genus Pentaceraster Döderlein, 1916
- Genus Pentaceropsis Sladen, 1889 accepted as Pentaster Döderlein, 1935
- Genus Pentaceros Schultze, 1760
- Genus Pentaceros Gray, 1840 accepted as Oreaster Müller & Troschel, 1842
- Genus Pentaster Döderlein, 1935
- Genus Poraster Döderlein, 1916
- Genus Protoreaster Döderlein, 1920
- Genus Protoreaster Döderlein, 1916
- Genus Pseudanthenea Döderlein, 1915
- Genus Pseudoreaster Verrill, 1899
- Genus Randasia Gray, 1840 accepted as Culcita Agassiz, 1836
- Genus Undecimus Whitley in McCulloch, 1934 accepted as Pentaceros Cuvier in Cuvier & Valenciennes, 1829
- Family Pentopliidae H.E.S. Clark, 1971 accepted as Goniasteridae Forbes, 1841
- Family Podosphaerasteridae Fujita & Rowe, 2002
- Family Pseudarchasteridae
- Family Pycinasteridae Spencer & Wright, 1966 †
- Family Radiasteridae Fisher, 1916
- Family Sphaerasteridae Schöndorf, 1906
- Family Stauranderasteridae Spencer, 1913 †
- Family Tropidasteridae Wright, 1880 †
- Family Valvatida (awaiting allocation)
- Order Velatida
- Family Embolasteridae Blake, 2008 †
- Family Fandasteridae Blake & Elliott, 2003 †
- Family Hudsonasteridae Schuchert, 1914 †
- Family Paulasteriidae Mah et al., 2015
- Genus Eriaster Blake & Guensburg, 2005 †
- Genus Forbesasterias Fau, Wright, Ewin, Gale & Villier, 2024 †
- Genus Marbleaster Fau, Wright, Ewin, Gale & Villier, 2024 †
- Genus Superstesaster Villier et al., 2017 †
- Class Asterozoa (awaiting allocation)
- Class Blastoidea †
- Class Cornuta
- Class Coronata
- Class Coronoidea †
- Class Crinoidea
- 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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