Onychodus can be a genus of prehistoric lobe-finned fish in the Devonian time period, close to 400 million yrs back. Known for its distinct options, Onychodus was an early illustration of sarcopterygian fish, which incorporates ancestors of recent lungfish and tetrapods. Platy fish are similar to swordtails but don't have https://minibookmarks.com/story18583880/the-ultimate-guide-to-aquatic-supplies