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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
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Origin of LABYRINTHODONT

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

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