Teleost
The huge group of modern bony fish with a movable upper jaw and a symmetrical tail, about 96 per cent of all fish species.
Also: Teleostei
Teleosts are the modern ray-finned fish. They share features such as a symmetrical tail, light, thin scales and jaws that can push forwards to suck in food. The group arose more than 200 million years ago and now holds about 30,000 species, from tiny gobies and guppies to tuna, marlin and the giant oarfish. A whole-genome duplication early in their history may have given them extra genes to work with, which some biologists link to their great variety.