Trimerorhachis Teeth Fossil Permian Age Reptile Waurika Oklahoma COA, Display

Location: Ryan Formation, Waurika, Oklahoma

Weight: 0.3 Ounces

Gem Jar Dimensions: 32MM 

Comes with a free Gem Jar display.

Comes with a Certificate of Authenticity. 

The item pictured is the one you will receive. 

Trimerorhachis

Trimerorhachis was a medium-sized temnospondyl amphibian that lived in freshwater environments during the Permian Period. Growing to nearly one meter in length, this ancient amphibian possessed an elongated body and short limbs, suggesting a lifestyle spent primarily in lakes and rivers rather than on land. Its broad, triangular skull and upward-facing eyes indicate an ambush predator that waited near the bottom for prey to approach.

Evidence from fossil remains shows that Trimerorhachis likely retained external gills throughout its life, similar to modern axolotls. This adaptation highlights its strong dependence on aquatic habitats and suggests limited terrestrial activity. Its anatomy reflects a predator specialized for slow-moving or still waters where stealth would have been crucial.

Covering its body were thin overlapping osteoderms that created an armor-like layer, especially around the tail. These bony plates may have served both as protection and as ballast, helping the animal remain submerged while feeding along riverbeds.