article: Tetrapod
links: Lepospondyl Synapsid Whatcheeria Amphibian Synapsida Labyrinthodont Poland Lizard Archosaur Paleothyris Panderichthys Reptiliomorpha Genealogy Sauropsid Pederpes Sauropsida Dumbarton Protoclepsydrops Nova Scotia Temnospondyl Petrolacosaurus Tetrapodomorph Lissamphibia Tiktaalik Tetrapodomorpha Bird Mammalia Amniota Chordata Snake Mississippian Amphibia Jennifer Clack Casineria Mammal Archaeothyris Scottish Borders Devonian Pennsylvanian Eusthenopteron Dinosaur Animal tracks Old Red Sandstone Sarcopterygii Crocodile Greek language Hylonomus Amniote Westlothiana Ocean Carboniferous