With regard to the descent of the great Kingdoms (as Vertebrata, Articulata, etc.)

See "A Catalogue of British Fossil Vertebrata," A.S. Woodward and C.D.

So much then for an outline sketch of the main features in the embryonic history of the Vertebrata.

AMPHIOXUS, or LANCELET, the name of small, fish-like, marine creatures, forming the class Cephalochorda, of the phylum Vertebrata.

Among the Vertebrata, however, there are a few examples which appear to be far less open to objection.