crossopterygian

English Thesaurus

1. any fish of the order Crossopterygii; most known only in fossil form (noun.animal)

hypernym	:	bony fish,
definition	:	any fish of the class Osteichthyes (noun.animal)

hyponym	:	coelacanth, latimeria chalumnae,
definition	:	fish thought to have been extinct since the Cretaceous period but found in 1938 off the coast of Africa (noun.animal)

member meronym	:	crossopterygii, subclass crossopterygii,
definition	:	fishes having paired fins resembling limbs and regarded as ancestral to amphibians (noun.animal)