Name: Apsisaurus.
Phonetic: Ap-se-sore-us.
Named By: Michel Laurin‭ ‬-‭ ‬1991.
Classification: Chordata,‭ ‬Synapsida,‭ ‬Eupelycosauria,‭ ‬Varanopidae.
Species: A.‭ ‬witteri‭ (‬type‭)‬.
Diet: Carnivore.
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.

       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.


Random favourites