Prehistoric water-dwelling weirdo with sideways teeth and a twisted jaw was already a 'living fossil' 275 million years ago Live ScienceAncient plant-eater with a twisted jaw and sideways-facing teeth was a 'living fossil' in its own time Phys.orgPaleontologists Solve the Mystery of a Twisted Jawbone With Sideways Teeth YahooBizarro salamander ancestor was an evolutionary oddball Popular Science