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 is a genus of Permian temnospondyl amphibians characterized by a specialized aquatic morphology and evidence of neoteny. The estimated maximum body length approached one meter, with an elongate trunk and reduced limbs indicating limited terrestrial locomotion. The cranial architecture includes a wide triangular skull with dorsally oriented eyes positioned near the anterior margin, consistent with benthic ambush predation.

The presence of a branchial apparatus in fossil specimens strongly suggests retention of external gills into adulthood, paralleling developmental patterns in modern aquatic amphibians. This morphology supports interpretations of a fully aquatic lifestyle within freshwater ecosystems such as lakes and slow-flowing rivers.

Dermal armor composed of thin, overlapping osteoderms covered much of the body, in some areas forming up to twenty layers. These osteoderms likely functioned as both protective elements and ballast, facilitating bottom-dwelling behavior and stabilizing the animal during feeding activities.