Onychodus can be a genus of prehistoric lobe-finned fish with the Devonian period of time, around 400 million years back. Noted for its exclusive characteristics, Onychodus was an early illustration of sarcopterygian fish, which incorporates ancestors of recent lungfish and tetrapods. Sunfish are definitely the heaviest bony fish species alive https://bookmarktune.com/story18504761/not-known-factual-statements-about-freshwater-fish