| Noun | 1. | class Osteichthyes - a class of fish having a skeleton composed of bone in addition to cartilage Craniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammals bony fish - any fish of the class Osteichthyes Crossopterygii, subclass Crossopterygii - fishes having paired fins resembling limbs and regarded as ancestral to amphibians Dipnoi, subclass Dipnoi - bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii subclass Teleostei, Teleostei - large diverse group of bony fishes; includes most living species class - (biology) a taxonomic group containing one or more orders |