WebA gill cover is used to pump water through the gills, enabling the bony fish to breathe without swimming. Taxonomy: Ray-finned fish constitute the largest class of vertebrates, including nearly 25000 marine and fresh … WebFish are aquatic, craniate, gill -bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those ...

Cretaceous Atlas of Ancient Life Actinopterygii

WebActinopterygii (; ), members of which are known as ray-finned fishes, is a clade (traditionally class or subclass) of the bony fishes. They comprise over 50% of living vertebrate … http://www.animalsworlds.com/classification-of-fish.html im good at fortnite

Actinopterygii Taxonomy Fish Species in the Ocean

WebOverview. Class Actinopterygii are the ray-finned fishes which date back to the explosion of all fishes during the Devonian Period (+400 million years ago), aptly named 'the age of … Webchondrostean, (subclass Chondrostei), any of approximately 30 species of primitive ray-finned bony fishes that inhabit marine and freshwater environments of North America and Eurasia. Chondrosteans make up one of the three major subdivisions of the superclass Actinopterygii, the other two being the holosteans and the teleosts. The only living … WebThe living ray-finned fish (subclass Actinopterygii) are the dominant fish today, with 42 orders, 431 families and 23,000+ species, assigned to two infraclasses: the Chondrostei … im good enough michael jordan