Chordata Haeckel, 1874 (Chordates) is a Phylum under Kingdom Animalia.
1,397 species are featured, under 9 Classes: Actinopterygii (626), Aves (325), Ascidiacea (233), Reptilia (111), Mammalia (54), Amphibia (31), Chondrichthyes (15), Leptocardii (1), etc.
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