Centrarchiformes
Centrarchiformes is an order of ray-finned fish, sometimes included amongst the perciformes, with 17 families. This order first appeared about 55.8 million years ago in the Eocene Era, and is comprised primarily of omnivores. The order has a wide range that includes the continents of Australia and South America. Many Centrarchiformes look essentially perch like, featuring a stocky build and a spine-bearing dorsal fin, and range in size from 2.5 cm in length, to 1.8 meters for the Maccullochella peelii.''Families
