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
- 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
- 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
- Order Apoda accepted as Apodida
- Order Apodida
- Family Achistridae Frizzell & Exline, 1955 †
- Family Apodida (awaiting allocation)
- Family Chiridotesidae † accepted as Chiridotitidae †
- Family Chiridotidae Østergren, 1898
- Family Chiridotitidae †
- Family Chirodotidae accepted as Chiridotidae Østergren, 1898
- Family Myriotrochidae
- Family Paleochiridotidae Frizzell & Exline, 1955 †
- Family Synaptidae Burmeister, 1837
- Genus Anapta Semper, 1867
- Genus Auricularia Chun, 1896 accepted as Protankyra Östergren, 1898
- Genus Becheria Ohshima, 1936
- Genus Chondrocloea Östergren, 1898 accepted as Synaptula Örstedt, 1849
- Genus Dactylapta Clark, 1908
- Genus Daira Gistl, 1848 accepted as Synapta Eschscholtz, 1829
- Genus Epitomapta Heding, 1928
- Genus Euapta Östergren, 1898
- Genus Eupatinapta Heding, 1928
- Genus Heterosynapta Verrill, 1867 accepted as Synaptula Örstedt, 1849
- Genus Labidoplax Östergren, 1898
- Genus Lapidoplax Grieg, 1912 accepted as Labidoplax Östergren, 1898
- Genus Leptosynapta Verrill, 1867
- Genus Mulleria Fleming, 1828 accepted as Oestergrenia Heding, 1931
- Genus Oestergrenia Heding, 1931
- Genus Oncinolabes Brandt, 1835 accepted as Synapta Eschscholtz, 1829
- Genus Opheodesoma Fisher, 1907
- Genus Patinapta Heding, 1928
- Genus Pendekaplectana Heding, 1931 accepted as Polyplectana Clark, 1908
- Genus Polyplectana Clark, 1908
- Genus Protankyra Östergren, 1898
- Genus Rhabdomolgus Keferstein, 1862
- Genus Rynkatorpa Rowe & Pawson, 1967
- Species Rynkatorpa albatrossi (Fisher, 1907)
- Species Rynkatorpa bicornis (Sluiter, 1901)
- Species Rynkatorpa bisperforata (H.L. Clark, 1938)
- Species Rynkatorpa coriolisi Smirnov, 1997
- Species Rynkatorpa duodactyla (Clark, 1908)
- Species Rynkatorpa felderi Pawson & Vance, 2005
- Species Rynkatorpa gibbsi Rowe, 1977
- Species Rynkatorpa hickmani Rowe & Pawson, 1967
- Species Rynkatorpa pawsoni Martin, 1969
- Species Rynkatorpa sluiteri (Fisher, 1907)
- Species Rynkatorpa timida (Koehler & Vaney, 1905)
- Species Rynkatorpa uncinata (Hutton, 1872)
- Genus Synapta Eschscholtz, 1829
- Genus Synaptula Örstedt, 1849
- Genus Synopta Gistl, 1848 accepted as Synapta Eschscholtz, 1829
- Genus Sypeta Clark, 1898 accepted as Synapta Eschscholtz, 1829
- Genus Tiedemannia Leuckart, 1830
- Genus Yemoja Martins & Souto, 2020
- Family Theeliidae † accepted as Chiridotitidae †
- Order Arthrochirotida †
- Order Aspidochirotida
- Order Dactylochirotida
- Order Dendrochirotida
- Order Elasipodida
- Order Holothuriae (awaiting allocation)
- Order Holothuriida
- Order Holothuroidea (awaiting allocation)
- Order Holothuroidea incertae sedis
- Order Holothuroidea incertae sedis
- Order Molpadiida
- Order Persiculida
- Order Synallactida
- Genus Bromlichnus Vallon, Rindsberg, Röper, Rothgaenger & Rothgaenger, 2020 †
- 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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