…f Osmeriformes sensu stricto ), Otomorpha (inclusion of Alepocephaliformes), Neoteleostei (removal of Stomiatiformes), and Lampridiformes (removal of Stylephorus ). There is considerable consensus between morphology and the interrelationships of major clades. For example, the maj…

…ed. Most fish belong to the class Actinopterygii , the ray-finned fishes, which accounts for approximately half of all living vertebrates. The earliest fish appeared during the Cambrian as small filter feeders ; they continued to evolve through the Paleozoic , diversifying into m…