He ought rather to come out in the character of a ceratodus or a labyrinthodon.    From Wordnik.com.  [Falling in Love With Other Essays on More Exact Branches of Science] Reference

This much later appearance of the higher osseous fishes is quite in accordance with evolution, although some of the very lowest forms, the lancelet and the lampreys, together with the archaic ceratodus, have survived to our time.    From Wordnik.com.  [Darwinism (1889)] Reference