Hynerpeton ("creeping animal from Hyner) is a genus of tetrapod from the Late Devonian period of North America. While commonly considered to be an amphibian due to its method of reproduction, it is not actually a member of the family, with it actually being a very early form of tetrapod. It was one of the first tetrapods to crawl onto land, giving it a huge advantage, as it could use its lungs to breathe the newly oxygenated air of the Devonian.
In The Land Before Time
A Hynerpeton briefly appears in The Land Before Time Animated Moviebook's Swamp Bubble Spelling Bee minigame, during a presentation of the word "Crawl".