Noun
a class of fish having a skeleton composed of bone in addition to cartilage
Source: WordNetHowever, tetrapods are descendants of the nearest common ancestor of Actinopterygii and Sarcopterygii, and tetrapods are not in Osteichthyes defined in this way, so the group is paraphyletic. Source: Internet
Early cartilaginous ( Chondrichthyes ) and bony fishes ( Osteichthyes ) also become diverse and played a large role within the Devonian seas. Source: Internet
This includes bony fishes ( Osteichthyes ), cartilaginous fish ( Chondrichthyes ), and jawless fish ( Agnatha ). Source: Internet
Other species can respire through their skin, intestines, and/or stomach.sfn Osteichthyes are primitively ectothermic (cold blooded), meaning that their body temperature is dependent on that of the water. Source: Internet
The group Osteichthyes is divided into the ray-finned fish ( Actinopterygii ) and lobe-finned fish ( Sarcopterygii ). Source: Internet
The largest subclass, the Actinopterygii (ray-finned fish) are monophyletic, but with the inclusion of the smaller sub-class Sarcopterygii, Osteichthyes is paraphyletic. Source: Internet