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
- Order Actinocerida †
- Order Agoniatitida †
- Order Ammonitida †
- Order Ammonoidea † accepted as Ammonitida †
- Order Anarcestida †
- Order Ancyloceratida †
- Order Antarcticerida †
- Order Ascoceratida †
- Order Aulacocerida †
- Order Bactritoidea (awaiting allocation) †
- Order Barrandeocerida †
- Order Bassleroceratida †
- Order Basslerocerida † accepted as Bassleroceratida †
- Order Belemnitida †
- Order Belemnoidea incertae sedis †
- Order Boletzkyida
- Order Cephalopoda (awaiting allocation)
- Order Cephalopoda incertae sedis
- Order Ceratitida †
- Order Clymeniida †
- Order Coleoidea (awaiting allocation)
- Order Coleoidea incertae sedis
- Order Colorthocerida †
- Order Decapoda accepted as Teuthoidea
- Order Diplobelida †
- Order Discosorida †
- Order Dissidocerida †
- Order Donovaniconida †
- Order Ellesmeroceratida † accepted as Ellesmerocerida †
- Order Ellesmerocerida †
- Order Endocerida †
- Order Goniatitida †
- Order Intejocerida †
- Order Lytoceratida †
- Order Meekoceratida †
- Order Mixosiphonata †
- Order Myopsida
- Order Nautilida
- Order Nautiloidea (awaiting allocation)
- Order Nautiloidea incertae sedis
- Order Octobrachia †
- Order Octopoda
- Order Oncocerida †
- Order Orthocerida †
- Family Arionoceratidae †
- Family Brachycycloceratidae Furnish, Glenister & Hansman, 1962 †
- Family Clinoceratidae Fowler, 1946 †
- Family Dawsonoceratidae Flower, 1962 †
- Family Discinocarididae Etheridge, Woodward & Jones, 1885 †
- Family Engorthoceratidae †
- Family Eriditidae Chen in Chen et al., 1981 †
- Family Eskimoceratidae Shimizu & Obata, 1935 †
- Family Geisonoceratidae Zhuravleva, 1959 †
- Family Lamellorthoceratidae Teichert, 1961 †
- Family Michelinoceratidae †
- Family Mysterioceratidae Sweet, 1964 †
- Family Narthecoceratidae Flower, 1958 †
- Family Offleyoceratidae Flower, 1962 †
- Family Orthoceratidae M'Coy, 1844 †
- Family Orthocerida (awaiting allocation) †
- Family Paraphragmitidae Flower in Flower & Kummel, 1950 †
- Family Peltocarididae Clarke in Zittel, 1900 †
- Family Proteoceratidae Flower, 1962 †
- Family Pseudorthoceratidae Flower & Caster, 1935 †
- Family Pseudorthocerida incertae sedis †
- Family Psuedorthoceratidae †
- Family Sactorthoceratidae Flower, 1946 †
- Family Sichuanoceratidae Zhuravleva, 1978 †
- Family Sphooceratidae Flower, 1962 †
- Family Stereoplasmoceratidae Kobayashi, 1934 †
- Family Troedssonellidae Kobayashi, 1935 †
- Genus Buttsoceras Ulrich & Foerste, 1933 †
- Genus Moridunoceras Evans, 2005 †
- Genus Oxfordoceras Ulrich, Foerste, Miller & Unklesbay, 1944 †
- Genus Tajaroceras Hook & Flower, 1976 †
- Genus Thoraloceras Kröger & Evans, 2011 †
- Order Otoceratida †
- Order Pallioceratida †
- Order Phragmoteuthida †
- Order Phylloceratida †
- Order Plectonocerida
- Order Plectronocerida † accepted as Ellesmerocerida †
- Order Prolecanitida †
- Order Protactinocerida †
- Order Pseudorthocerida †
- Order Psiloceratida †
- Order Sepiida
- Order Sepioidea
- Order Spirulida
- Order Tarphycerida †
- Order Teuthida
- Order Teuthoidea
- Order Vampyromorpha
- Order Xenodiscida †
- Order Yanhecerida †
- Class Cricoconarida †
- Class Gastropoda
- Class Helcionelloida †
- Class Mollusca (awaiting allocation)
- Class Mollusca incertae sedis
- Class Monoplacophora
- Class Paragastropoda †
- Class Polyplacophora
- 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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