Noun: crossopterygian ,kró,sóp-tu'ri-jee-un
- Any fish of the order Crossopterygii; most known only in fossil form
"Crossopterygians are considered ancestral to land vertebrates";
- lobefin, lobe-finned fish
Derived forms: crossopterygians
Type of: bony fish
Part of: Crossopterygii, subclass Crossopterygii
Encyclopedia: Crossopterygian