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Taxonomy:

Phylum Chordata

Cephalochordata (Add)
Urochordata, Tunicate (Add)
Vertebrata

Panarthropoda (Add)

Phylum Arthropoda

Phylum Onychophora

Phylum Tardigrada (Add)

Phylum Molluscs, Mollusca

Class Aplacophora (Add)
Class Bivalvia

Class Cephalopoda

Class Gastropoda

Class Monoplacophora (Add)
Class Polyplacophora (Add)
Class Scaphopoda (Add)

Phylum Corals and Jellyfish, Cnidaria

Class Anthozoa

Medusozoa

Phylum Acanthocephala (Add)

Class Archiacanthocephala (Add)
Class Eoacanthocephala (Add)
Class Palaeacanthocephala (Add)

Phylum Brachiopoda (Add)

Class Articulata (Add)
Class Inarticulata (Add)

Phylum Bryozoa (Add)

Class Gymnolaemata (Add)
Class Phylactolaemata (Add)
Class Stenolaemata (Add)

Phylum Chaetognatha (Add)
Phylum Ctenophora

Class Nuda (Add)
Class Tentaculata

Phylum Cycliophora
Phylum Echinoderms, Echinodermata

Asterozoa (Add)
Crinozoa (Add)
Echinozoa (Add)

Phylum Echiurida (Add)
Phylum Entoprocta (Add)
Phylum Gastrotricha (Add)
Phylum Gnathostomulida (Add)
Phylum Hemichordata (Add)

Class Enteropneusta (Add)
Class Pterobranchier (Add)

Phylum Kinorhyncha (Add)

Class Cyclorhagia (Add)
Class Homalorhagida (Add)

Phylum Loriciferia (Add)
Phylum Mesozoa (Add)

Class Orthonectida (Add)
Class Rhombozoa (Add)

Phylum Nematoda (Add)

Class Aphasmidia (Add)
Class Phasmidia (Add)

Phylum Nematomorpha (Add)

Class Gordioida (Add)
Class Nectonematoida (Add)

Phylum Pentastomida (Add)
Phylum Phoronida (Add)
Phylum Platyhelminthes

Class Cestoda
Class Monogenea
Class Trematoda
Class Turbellaria

Phylum Pogonophora (Add)
Phylum Priapulida (Add)
Phylum Rhynchocoela (Add)

Class Anopla (Add)
Class Enopla (Add)

Phylum Rotifera (Add)

Class Bdelloidea (Add)
Class Monogononta (Add)
Class Seisonidea (Add)

Phylum Sipunculida (Add)
Phylum Annelida

Class Clitellata
Class Hirudinea
Class Myzostoma (Add)
Class Oligochaeta (Add)
Class Polychaeta