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
- Class Annelida (awaiting allocation)
- Class Clitellata
- Subclass Hirudinea
- Subclass Oligochaeta
- Order Capilloventrida
- Order Crassiclitellata
- Order Haplotaxida
- Family Acanthodrilidae Claus, 1990
- Family Ailoscolecidae
- Family Alluroididae Michaelsen 1900
- Family Almidae
- Family Biwadrilidae
- Family Criodrilidae
- Family Dorydrilidae
- Family Enchytraeidae Vejdovsky, 1879
- Family Eudrilidae Claus, 1880
- Family Exxiidae
- Family Glossoscolecidae
- Family Haplotaxidae
- Family Hormogastridae Michaelsen, 1900
- Family Kynotidae
- Family Lumbricidae Claus, 1876
- Family Lutodrilidae
- Family Megascolecidae Rosa, 1891
- Family Microchaetidae
- Family Naididae Ehrenberg, 1828
- Family Narapidae
- Family Ocnerodrilidae Beddard, 1892
- Family Octochaetidae
- Family Opisthocystidae accepted as Opistocystidae Cernosvitov, 1936
- Family Opistocystidae Cernosvitov, 1936
- Family Phreodrilidae Beddard, 1891
- Family Propappidae
- Genus Propappus Michaelsen, 1905
- Family Randiellidae Erséus & Strehlow, 1986
- Family Sparganophilidae
- Family Syngenodrilidae accepted as Alluroididae Michaelsen 1900
- Family Tubificidae Vejdovský, 1884 accepted as Naididae Ehrenberg, 1828
- Order Lumbriculida
- Order Moniligastrida
- Order Oligochaeta (awaiting allocation)
- Order Oligochaeta incertae sedis
- Order Tubificida
- Order Branchiobdellida
- Class Machaeridia
- Class Myzostomaria
- Class Polychaeta
- Family Lobatocerebridae Rieger, 1980
- Genus Aulozoon Gehling & Runnegar, 2022 †
- Genus Gabavermis Troppenz, 2013 †
- Genus Lapillitubus Belaústegui & Belaústegui, 2017 †
- Genus Meanderovaleichnus Cónsole-Gonella & Aceñolaza, 2014 †
- Genus Shaihuludia Kimmig, LaVine, Schiffbauer, Egenhoff, Shelton & Leibach, 2023 †
- Genus Spitiprion Tonarová, Suttner, & Hints, 2024 †
- Genus Taonurus Saporta & Marion, 1881 †
- Genus Xiaoshibachaeta Yang, Aguado, Yang & Bleidorn, 2024 †
- 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
- 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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