Labyrinthodontia (L/M)

Labyrinthodontia is a grouping of various predatory, amphibious tetrapods which lived the world over during the late Paleozoic and Mesozoic eras. The earliest are known from about 395 million years ago, the Emsian age of the early Devonian period, while the latest lived 120.5 million years ago, during the Aptian age of the early Cretaceous.