Apsisaurus

Ap-se-sore-us.
By Cassidy Wood
Published on

Cassidy Wood

Paleoentomologist

Cassidy Wood uncovers the tiny yet significant world of prehistoric insects. Her research on amber-preserved specimens has revealed intricate details about ancient ecosystems.

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Wood, C. (2012, August 30). Apsisaurus. Prehistoric-wildlife. https://www.prehistoric-wildlife.com/species/apsisaurus/

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Name

Apsisaurus.

Phonetic

Ap-se-sore-us.

Named By

Michel Laurin‭ ‬-‭ ‬1991.

Classification

Chordata,‭ ‬Synapsida,‭ ‬Eupelycosauria,‭ ‬Varanopidae.

Diet

Carnivore.

Species

A.‭ ‬witteri‭

Size

Unavailable.

Known locations

USA,‭ ‬Texas‭ ‬-‭ ‬Archer City Formation.

Time Period

Early/Mid Permian.

Fossil representation

Partial post cranial skeleton as well as a partial skull and jaws.

In Depth

       Initially thought to be a diapsid,‭ ‬Apsisaurus was later realised to a Eupelycosaurian varnopisd.‭ ‬As a Varanopid,‭ ‬Apsisaurus was related to the more famous Varanops which also lived in Texas at the same approximate time as Apsisaurus.

Further Reading

-‭ ‬The osteology of a Lower Permian eosuchian from Texas and a review of diapsid phylogeny.‭ ‬-‭ ‬Zoological Journal of the Linnean Society‭ ‬101‭ (‬1‭)‬:‭ ‬59‭–‬95.‭ ‬-‭ ‬Michel Laurin‭ ‬-‭ ‬1991. -‭ ‬Apsisaurus witteri from the Lower Permian of Texas:‭ ‬yet another small varanopid synapsid,‭ ‬not a diapsid. -‭ ‬Journal of Vertebrate Paleontology‭ ‬30‭ (‬5‭)‬:‭ ‬1628‭–‬1631.‭ ‬-‭ ‬Robert R.‭ ‬Reisz,‭ ‬Michel Laurin and David Marjanović‭ ‬-‭ ‬2010.

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