Pareiasaurus

Pa-rye-ah-sore-us.
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John Stewart

Paleoecologist

John Stewart is a distinguished paleoecologist whose work has significantly advanced our understanding of prehistoric ecosystems. With over two decades dedicated to unearthing fossils across Asia and Africa

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Name

Pareiasaurus‭ (‬Helmet cheeked lizard‭)‬.

Phonetic

Pa-rye-ah-sore-us.

Named By

Richard Owen‭ ‬-‭ ‬1876.

Classification

Chordata,‭ ‬Reptilia,‭ ‬Procolophonomorpha,‭ ‬Procolophonia,‭ ‬Pareiasauridae.

Diet

Herbivore.

Species

P. serridens

Size

2.5‭ ‬meters long.

Known locations

Southerm Africa.

Time Period

Late Permian.

Fossil representation

Several skeletons.

In Depth

       Superficially,‭ ‬Pareiasaurus is very similar to its relative Scutosaurus.‭ ‬The main differences between the two are the way the legs support the body.‭ ‬In Scutosaurus the legs are directly underneath the body,‭ ‬giving it a much taller appearance.‭ ‬The legs of Pareiasaurus however came out from the sides in a more familiar reptilian fashion like todays lizards.‭ ‬This means that Pareiasaurus would have carried itself nearer to the ground than Scutosaurus suggesting a specialisation in feeding off very low growing vegetation.‭ ‬A further adaption for a herbivorous lifestyle,‭ ‬Pareiasaurus had leaf shaped teeth and a toothed palate to grind vegetation against.

Further Reading

– The Armour of the Extinct Reptiles of the Genus Pareiasaurus – Proceedings of the Zoological Society of London Vol 78, Issue 3, p605–610 – H. G. Seeley – 1908. – Notes on the possible evidence of the presence of a Pareiasaurus-like reptile in the Conemaugh Series of West Virginia. – West Virginia Geological Survey: Braxton and Clay Counties 817-821 – E. C. Case – 1917. – New genera and species of tetrapods from the Karroo Beds of South Africa. – Journal of Paleontology 11(7):613-619 – E. C. Olsen & R. Broom – 1937.

SPECIES SPOTLIGHT