Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
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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
- Family Acanthasteridae Sladen, 1889
- Family Arkonasteridae Kesling, 1982 †
- Family Asterinidae Gray, 1840
- Family Echinasteridae Verrill, 1870
- Family Ganeriidae Sladen, 1889
- Family Metrodiridae Sladen, 1889 accepted as Echinasteridae Verrill, 1870
- Family Mithrodiidae Viguier, 1878
- Family Plesiosolasteridae †
- Family Poraniidae Perrier, 1893
- Genus Alexandraster Ludwig, 1905 accepted as Poraniopsis Perrier, 1891
- Genus Bathyporania Mah & Foltz, 2014
- Genus Cheilaster Bell, 1893 accepted as Chondraster Verrill, 1895
- Genus Cheirastes Nobre, 1931
- Genus Chondraster Verrill, 1895
- Genus Chondraster Madsen, 1959 accepted as Porania Gray, 1840
- Genus Clavaporania Mah & Foltz, 2014
- Genus Culcitopsis Verrill, 1914
- Genus Glabraster A.H. Clark, 1916
- Genus Lahillea de Loriol, 1904 accepted as Poraniopsis Perrier, 1891
- Genus Lahillia Loriol, 1906 accepted as Poraniopsis Perrier, 1891
- Genus Lasiaster Sladen, 1889 accepted as Poraniomorpha Danielssen & Koren, 1881
- Genus Marginaster Perrier, 1881
- Genus Noriaster Blake, Tintori & Hagdorn, 2000 †
- Genus Ortmannia de Loriol, 1906 accepted as Poraniopsis Perrier, 1891
- Genus Porania Gray, 1840
- Genus Poraniomorpha Danielssen & Koren, 1881
- Genus Poraniopsis Perrier, 1891
- Genus Poranisca Verrill, 1914 accepted as Marginaster Perrier, 1881
- Genus Porianomorpha
- Genus Pseudoporania Dons, 1936 accepted as Porania Gray, 1840
- Species Pseudoporania stormi Dons, 1936 accepted as Porania stormi Dons, 1936
- Genus Rhegaster Sladen, 1883 accepted as Poraniomorpha Danielssen & Koren, 1881
- Genus Sphaeraster Dons, 1938 accepted as Poraniomorpha Danielssen & Koren, 1881
- Genus Sphaeriaster Dons, 1939 accepted as Poraniomorpha Danielssen & Koren, 1881
- Genus Spoladaster Fisher, 1940
- Genus Tylaster Danielssen & Koren, 1881
- Family Solasteridae Viguier, 1878
- Family Valvasteridae Viguier, 1878 accepted as Asteropseidae Hotchkiss & Clark, 1976
- Order Trichasteropsida
- Order Uractinida †
- Order Valvatida
- 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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