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labyrinthodont

noun lab·y·rin·tho·dont \-ˈrin(t)-thə-ˌdänt\

Definition of LABYRINTHODONT

:  any of a superorder (Labyrinthodontia) of extinct amphibians of the Late Paleozoic and Early Mesozoic typically having bodies resembling salamanders or crocodiles and considered to be the earliest tetrapod vertebrates
labyrinthodont adjective

Origin of LABYRINTHODONT

New Latin Labyrinthodontia, from Greek labyrinthos + odont-, odous tooth — more at tooth
First Known Use: circa 1852

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