Classification of Zrzavy et al. 1998

Cl. †Inarticulata Huxley 1869
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Subph. Craniiformea Popov et al. 1993
Subph. Linguliformea Williams et al. 1996
Invalid names: Disciniformea Zrzavy et al. 1998 [empty]
Unr. Animalia Linnaeus 1758
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Ph. †Choanozoa
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Invalid names: Choanoflagellata [synonym]
Unr. Metazoa Haeckel 1874
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Invalid names: Calcarea Bowerbank 1864 [synonym], Sphinctozoa Steinmann 1882 [empty]
Unr. †Epitheliozoa Axe
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Ph. Cnidaria Hatschek 1888
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Invalid names: Myxozoa [empty]
Ph. Ctenophora Eschscholtz 1829 [comb jelly]
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Invalid names: Phagocytellozoa [synonym]
Unr. Triploblastica Lankester 1877
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Unr. †Eutriploblastica Zrzavy et al. 1998
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Invalid names: Notandropora [synonym]
Unr. †Neotriploblastica Zrzavy et al. 1998
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Unr. †Eucoelomata
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Ph. Bryozoa Ehrenberg 1831 [bryozoan]
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Cl. Gymnolaemata Allman 1856
Cl. Phylactolaemata Allman 1856 [freshwater bryozoan]
Cl. Stenolaemata Borg 1926
Invalid names: Ectoprocta [synonym], Polyzoa [synonym]
Unr. Deuterostomia Grobben 1908
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Unr. †Ambulacralia
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Ph. Echinodermata Klein 1754
Ph. Hemichordata Bateson 1885 [acorn worm]
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Cl. Pterobranchia Lankester 1877 [pterobranch]
Ph. Chordata Haeckel 1874
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Cl. Cephalochordata Haeckel 1866 [lancelet]
Subph. Vertebrata Lamarck 1801 [vertebrate]
Invalid names: Neorenalia [synonym]
Unr. †Trochozoa
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Ph. Entoprocta Nitsche 1869
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Invalid names: Kamptozoa [synonym]
Unr. †Eutrochozoa
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Unr. †Chaetifera
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Ph. Annelida Lamarck 1809 [worm]
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Cl. Polychaeta Grube 1850
Invalid names: Aphanoneura [empty]
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Invalid names: Echiurida [synonym]
Ph. Pogonophora Johansson 1937
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Invalid names: Afrenulata [empty], Frenulata [empty], Obturata [empty], Perviata [empty], Vestimentifera [empty]
Ph. Mollusca Linnaeus 1758 [mollusk]
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Invalid names: Nemertini [synonym], Rhynchocoelia [synonym]
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Invalid names: Sipunculida [synonym]
Invalid names: Lobatocerebromorpha [empty], Myzostomida [empty]
Invalid names: Cycliophora [empty]
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Invalid names: Mastigocystia [synonym]
Invalid names: Lophotrochozoa [invalid subgroup], Phoronozoa Zrzavy et al. 1998 [empty]
Unr. †Paracoelomata Zrzavy et al. 1998
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Unr. †Ecdysozoa
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Unr. †Loricifera
Invalid names: Kinorhyncha [empty], Priapula [empty], Scalidophora [synonym]
Ph. Chaetognatha Leuckart 1854 [arrow worm]
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Ph. Arthropoda Latreille 1829 [arthropod]
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Invalid names: Euarthropoda [synonym]
Ph. Onychophora Grube 1853 [velvet worm]
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Invalid names: Lobopodia [synonym]
Ph. Tardigrada Doyère 1840 [water bear]
Invalid names: Nematozoa Zrzavy et al. 1998 [empty]
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Unr. †Lemniscea
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Invalid names: Acanthocephala [empty], Bdelloida [empty]
Invalid names: Monogononta [empty], Rotifera [synonym]
Invalid names: Neotrichozoa Zrzavy et al. 1998 [empty]
Invalid names: Rhabditophora [empty]
Unr. †Mesozoa
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Invalid names: Orthonectida [synonym]
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Invalid names: Dicyemida [synonym]
Invalid names: Acoela [empty], Bilateria [synonym], Nemertodermatida [empty]
Invalid names: Coelenterata Hatschek 1888 [invalid subgroup]
Invalid names: Silicispongea [empty]