Definition of labyrinthodont in English:

labyrinthodont

Syllabification: lab·y·rin·tho·dont
Pronunciation: /ˌlabəˈrinTHəˌdänt
 
/

adjective

Zoology
  • 1(Of teeth) having the enamel deeply folded to form a labyrinthine structure.
  • 1.1 Paleontology Of or relating to a group of large fossil amphibians of the late Devonian to early Triassic periods having labyrinthodont teeth.
    More example sentences
    • On land there was a major faunal turnover in which labyrinthodont amphibians, early reptile groups, and mammal-like reptiles died out and were replaced by archosaurs, lepidosaurs, and mammals.
    • Finding labyrinthodont amphibian vertebrae and lungfish teeth, we took several bags of matrix to wash.
    • Whether it was a labyrinthodont amphibian or a primitive reptile has been much disputed.

noun

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  • A labyrinthodont amphibian.
    • Former subclass Labyrinthodontia: several families, but no longer considered to be a single group
    More example sentences
    • Curiously, labyrinthodonts are not found in the Otways - crocodiles apparently filled the same ecological niche.
    • Two main types of early amphibians include the large powerfully built labyrinthodonts and the small, slender lepospondyls.
    • All of these Palaeozoic and early Mesozoic amphibians are called labyrinthodonts and lepospondyls, based on features of their teeth and vertebrae.

Origin

mid 19th century: from modern Latin Labyrinthodontia, from Greek laburinthos 'labyrinth' + odous, odont- 'tooth'.

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