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
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Class Cestoda
- Class Platyhelminthes (awaiting allocation)
- Class Platyhelminthes incertae sedis
- Class Trematoda
- Order Aspidogastrea (awaiting allocation)
- Order Aspidogastrida
- Order Azygiida
- Order Capsalidea
- Order Chimaericolidea
- Order Dactylogyrida (awaiting allocation)
- Order Dactylogyridea
- Order Diclybothriidea
- Order Digenea (awaiting allocation)
- Order Digenea incertae sedis
- Order Diplostomida
- Order Echinostomida
- Family Achillurbaniidae
- Family Balfouriidae
- Family Brumptidae
- Family Brumptiidae Stunkard, 1925
- Family Campululidae
- Family Cathaemasiidae Fuhrmann, 1928
- Family Cladorchiidae Fischoeder, 1901
- Family Cyclocoelidae Stossich, 1902
- Family Diplodiscidae Cohn, 1904
- Family Echinostomatidae Looss, 1899
- Family Fasciolidae Railliet, 1895
- Family Gastrodiscidae Monticelli, 1892
- Family Gastrothylacidae Monticelli, 1892
- Family Haplosplanchnidae Poche, 1926
- Family Heronimidae Ward, 1918
- Family Megaperidae Manter, 1934
- Family Mesometridae Poche, 1926
- Family Microscaphidiidae Looss, 1900
- Family Notocotylidae Lühe, 1909
- Family Nudacotylidae Barker, 1916
- Genus Neocotyle Travassos, 1923
- Genus Nudacotyle Barker, 1916
- Family Ommatobrephidae
- Family Opisthotrematidae Poche, 1926
- Family Orchipedidae Skrjabin, 1913
- Family Paramphistomatidae
- Family Philophthalmidae Looss, 1899
- Family Pronocephalidae Looss, 1899
- Family Psilostomatidae
- Family Psilostomidae Looss, 1900
- Family Rhabdiopoeidae Poche, 1926
- Family Rhabdopoeidae
- Family Rhopaliidae Looss, 1899
- Family Saakotrematidae
- Order Fasciolatoidea
- Order Gymnophalloidea (awaiting allocation)
- Order Gyrodactylidea
- Order Hemiuroidea (awaiting allocation)
- Order Lepocreadioidea (awaiting allocation)
- Order Mazocraeidea
- Order Monocotylidea
- Order Monogenea (awaiting allocation)
- Order Monopisthocotylea (awaiting allocation)
- Order Montchadskyellidea
- Order Opisthorchiida
- Order Paramphistomoidea (awaiting allocation)
- Order Plagiorchiida
- Order Polyopisthocotylea
- Order Polyopisthocotylea (awaiting allocation)
- Order Polystomatidea
- Order Stichocotylida
- Order Strigeidida
- Order Trematoda (awaiting allocation)
- Order Trematoda incertae sedis
- Order Zoogonoidea (awaiting allocation)
- Genus Kunckelia Künstler, 1881
- Genus Künckelia Künstler, 1881 accepted as Kunckelia Künstler, 1881
- Class Turbellaria
- 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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