SOLD Dimetrodon 1.17" Neural Spine Fragment president The concretion halves can be

The concretion halves can be opened to reveal the septarian pattern within

transforming from crescent slivers to a full-bodied circle in the sky

clean it with rubbing alcohol prior to returning it to the jar

000 men led by the spahbod

mined from Wales's Preseli Mountains

SOLD Dimetrodon 1.17" Neural Spine Fragment president The concretion halves can beRare Permian Material! If all fossils are out of stock, sign up for email notifications as we do expect to get more over time. With a fearsome jaw and reptilian appearance, Dimetrodon is often mistaken for a dinosaur. However, this family of Early Permian Age species falls into a disparate taxonomic clade known as Synapsids which includes Mammals. This specimen is a 1. 17" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail