.9" Fossil Permian Eel-Like Amphibian (Archeria) Vertebra - Texas

Fossil Permian Eel-Like Amphibian (Archeria) Vertebra - Texas #251394

This is a .9" tall vertebra of Archeria crassidiscus from the Pennsylvanian-aged deposits of the Nocona Formation (formerly lower-upper Admiral Formation) of Texas.

Archeria was an eel-like embolomerous amphibian that could exceed 5 feet in length and weighed around 80 pounds. Nearly all known specimens are the same size, suggesting very fast development to early adulthood and very slow growth thereafter.

An artists reconstruction of Archeria. By Nobu Tamura (http://spinops.blogspot.com)