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Labyrinthodontia

Paraphyletic group of tetrapodomorphs"Labyrinthodontia" (from Ancient Greek λαβύρινθος (labúrinthos, meaning "maze", and ὀδούς (odoús), meaning "tooth") is an informal group of extinct predatory amphibians which were major components of ecosystems in the late Paleozoic and early Mesozoic eras (about 390 to 150 million years ago).

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