Crossopterygii

WORDNET DICTIONARY

crossopterygii(n = noun.animal) subclass crossopterygii - fishes having paired fins resembling limbs and regarded as ancestral to amphibians;

is a member of class osteichthyes, osteichthyes

is a kind of class

Crossopterygii, n. pl. [NL., fr. Gr. tassels, a fringe + , dim. of wing, fin.].

An order of ganoid fishes including among living species the bichir (Polypterus). See Brachioganoidei. [1913 Webster]