Name: Teraterpeton ‭(‬monstrous creeper‭)‬.
Phonetic: Te-rat-er-pe-ton.
Named By: Hans Dieter Seus‭ ‬-‭ ‬2003.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Diapsida,‭ ‬Archosauromorpha,‭ ‬Teraterpetidae.
Species: T.‭ ‬hrynewichorum‭ (‬type‭)‬.
Diet: Uncertain.
Size: Roughly about‭ ‬110-120‭ ‬centimetres long.
Known locations: Canada,‭ ‬Nova Scotia‭ ‬-‭ ‬Wolfville Formation.
Time period: Carnian of the Triassic.
Fossil representation: Skull and partial postcranial skeleton.

       Teraterpeton was an archosauromorph that much is certain.‭ ‬Beyond this however Teraterpeton was so unlike any other archosauromorph seen at that time that the genus had to have its own family group named,‭ ‬the Teraterpetidae.‭ ‬The‭ ‬jaws of Teraterpeton are notably elongated and thin,‭ ‬kind of like what you might see in a pterosaur or an icthyosaur,‭ ‬though Teraterpeton does not seem to be related to either.‭ ‬The anterior‭ (‬front‭) ‬half of the jaws were toothless.‭ ‬Half way back and extended to below the eye socket‭ (‬another unusual feature for an archosauromorph‭) ‬small sharp teeth grew.‭ ‬The teeth in the upper and lower jaws interlocked with one another,‭ ‬with the cusps of upper teeth fitting into the pits of the lower teeth,‭ ‬and cusps of the lower teeth fitting into the pits of the upper teeth.‭ ‬At the time of writing there is no clear indication as to why Teraterpeton should have become so specialised,‭ ‬though it certainly would have filled some kind of specialist niche within the ecosystem.

Further reading
-‭ ‬An unusual new archosauromorph reptile from the Upper Triassic Wolfville Formation of Nova Scotia.‭ ‬-‭ ‬Canadian Journal of Earth Sciences‭ ‬40:635-649.‭ ‬-‭ ‬Hans Dieter Seus‭ ‬-‭ ‬2003.
- Postcranial remains of Teraterpeton hrynewichorum (Reptilia: Archosauromorpha) and the mosaic evolution of the saurian postcranial skeleton. - Journal of Systematic Palaeontology. 17 (20): 1745–1765. - Adam C. Pritchard & Hans-Dieter Sues - 2019.


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