Share this entry

Share this page

labyrinthodont

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

Definition of labyrinthodont in English:

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.
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

Back to top  
A labyrinthodont amphibian.
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'.

Definition of labyrinthodont in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day tenebrous
Pronunciation: ˈtɛnɪbrəs
adjective
dark; shadowy or obscure