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
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Class Aplacophora
- Class Bivalvia
- Class Calyptoptomatida †
- Class Camerothecida
- Class Cephalopoda
- Class Cricoconarida †
- Class Gastropoda
- Class Helcionelloida †
- Class Mollusca (awaiting allocation)
- Class Mollusca incertae sedis
- Class Monoplacophora
- Class Paragastropoda †
- Class Polyplacophora
- Order Acanthochitonida
- Order Chelodida †
- Order Chitonida
- Order Hemithecellitina † accepted as Chelodida †
- Order Ischnochitonida
- Order Lepidopleurida
- Family Abyssochitonidae dell'Angelo & Palazzi, 1989
- Family Acutichitonidae Hoare et al., 1983 †
- Family Afossochitonidae †
- Genus Afossochiton Ashby, 1925 †
- Family Choriplacidae Ashby, 1928
- Family Cymatochitonidae †
- Family Ferreiraellidae dell'Angelo & Palazzi, 1991 accepted as Abyssochitonidae dell'Angelo & Palazzi, 1989
- Family Glyptochitonidae †
- Family Hanleyidae Bergenhayn, 1955
- Family Heterochitonidae †
- Family Lekiskochitonidae †
- Family Lepidopleuridae Pilsbry, 1892 accepted as Leptochitonidae Dall, 1889
- Family Leptochitonidae Dall, 1889
- Family Llandeilochitonidae †
- Family Nierstraszellidae Sirenko, 1992
- Family Permochitonidae †
- Family Protochitonidae Ashby, 1925
- Family Spinochitonidae Dell'Angelo, Lesport, Cluzaud & Sosso, 2018 †
- Family Xylochitonidae Gowlett-Holmes & Jones, 1992 accepted as Abyssochitonidae dell'Angelo & Palazzi, 1989
- Order Multiplacophora †
- Order Neoloricata (awaiting allocation)
- Order Neoloricata (awaiting allocation)
- Order Paleoloricata (awaiting allocation) †
- Order Phosphatoloricatida †
- Order Polyplacophora (awaiting allocation)
- Order Septemchitonida †
- Family Dycheiidae Pojeta, Vendrasco & Darrough, 2010 †
- Class Rostroconchia †
- Class Scaphopoda
- Class Stenothecoida †
- Class Tentaculita †
- Family Maikhanellidae Missarzhevsky, 1989 †
- Genus Lingulocaris Salter, 1866 †
- Genus Modiolocaris Peach in Jehu & Campbell, 1917 † accepted as Lingulocaris Salter, 1866 †
- 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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