CrossopterygiiA subclass of the Osteichthyes that contains fossil fish which include the ancestors to the amphibians (class Amphibia). The group was though to be extinct until a living member, the coelacanth, was found off the east coast of Africa. Crossopterygians have paired fins that are supported by fleshy lobes. Related category• ZOOLOGYAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |