Detailed Trimerorhachis Permian Amphibian Fossil

Trimerorhachis insignis

(Cope, 1878)

Class Amphibia, Order Temnospondyli, Family Trimerorhachidae

Geological Time: Lower Permian

Size: Skull: 100 mm long by 100 mm wide Matrix: 170 mm by 140 mm

Fossil Site: Hennessy Formation, Tillman County, Oklahoma

Code: UKF240

Price: Sold

Description: This is a fine fossil specimen of a rarely seen amphibian; a temnospondyl known as Trimerorhachis Permian Amphibian Trimerorhachis. The genus derives its name from the tripartite vertebrae. It is placed here in the Reptile section of the store as amphibians are almost never offered. The Temnosodyli were thought to have died out at the end of the Jurassic, but new material shows that they survived until the Late Cretaceous Aptian Stage. The genus were aquatic amphibiansTrimerorhachis Permian Amphibian Fossil inhabiting rivers and lakes. Its sharp teeth were suited to preying on fish and other smaller amphibians in its environment. It had sales and a bony integument of osteoderms much like modern-day crocodylians. This is a fine skull of the interesting amphibian, seen here in association wityh numerous other skeletal elements. Note particularly the fact that there are two mandibles present on the reverse that by their differing sizes are indicative of a second individual. I have included a restoration of what it looked like in lifes.

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