Onychodus is actually a genus of prehistoric lobe-finned fish within the Devonian interval, approximately 400 million a long time back. Known for its exclusive features, Onychodus was an early illustration of sarcopterygian fish, which includes ancestors of recent lungfish and tetrapods. With their Stone Exocranium within the entrance of their https://sb-bookmarking.com/story18655453/everything-about-aquarium-cleaning