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List of animal classes

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The following is a list of the classes in each phylum of the kingdom Animalia. There are 111 classes of Animals in 36 phylums.

Chelicerata (subphylum of Arthropoda)

Crustacea (subphylum of Arthropoda)

Hexapoda (subphylum of Arthropoda)

Myriapoda (subphylum of Arthropoda)

Cephalochordata (subphylum of Chordata)

Urochordata (subphylum of Chordata)

Vertebrata (subphylum of Chordata)

Agnatha (infraphylum in the subphylum Vertebrata)

Cyclostomata (superclass in the infraphylum Agnatha)

Gnathostomata (infraphylum in the subphylum Vertebrata)

Chondrichthyes (informal grouping in the infraphylum Gnathostomata)
Tetrapoda (superclass in the infraphylum Gnathostomata)
Amniota (series in the superclass Tetrapoda)
Osteichthyes (superclass in the infraphylum Gnathostomata)

Crinozoa (subphylum of Echinodermata)

Asterozoa (subphylum of Echinodermata)

Echinozoa (subphylum of Echinodermata)