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
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Class Anopla accepted as Nemertea
- Class Arhynchocoela
- Class Enopla accepted as Nemertea
- Order Bdellonemertea
- Order Hoplonemertea
- Order Hoplonemertini
- Family Eumonostilifera incertae sedis
- Family Fasciculonemertidae
- Family Monostilifera (awaiting allocation)
- Genus Albanemertes Senz, 1993
- Genus Annulonemertes Berg, 1985
- Genus Arenogigas Krämer & Döhren, 2015
- Genus Atrionemertes Senz, 1993
- Genus Campbellonemertes Moore & Gibson, 1972
- Genus Cyanonemertes Iwata, 2007
- Genus Frontonemertes Iwata, 2006
- Genus Geonemertes Semper, 1863
- Genus Limnemertes Gibson & Wang, 2002
- Genus Potamostoma Kajihara, Gibson & Mawatari, 2003
- Genus Prostoma Dugès, 1828
- Genus Protetrastemma Chernyshev, 2004
- Genus Quasitetrastemma Chernyshev, 2004
- Genus Quoyianemertes Senz, 2001
- Genus Raygibsonia Sundberg et al., 2009
- Genus Sanjuannemertes Iwata, 2006
- Genus Satellitenemertes Iwata, 2006
- Genus Tetraneuronemertes Sundberg, Gibson & Strand, 2007
- Genus Verrillianemertes Senz, 2001
- Species Verrillianemertes rathkei Senz, 2001
- Species Verrillianemertes schultzei Senz, 2001
- Genus Vieitezia Junoy, Andrade & Giribet, 2010
- Family Oerstediidae Chernyshev, 1993
- Order Polystilifera
- Class Nemertea (awaiting allocation)
- Class Nemertea incertae sedis
- Class Nemertina (awaiting allocation) accepted as Nemertea (awaiting allocation)
- Class Palaeonemertea
- Class Pilidiophora
- 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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