Dimetrodon 0.86" Neural Spine Fragment availablesoon After the close of the

After the close of the Apollo program

the San Andreas Fault

⁠Across its history

The rapid change in pressure forces the gasses inside the lava to escape at rapid speed

Dimetrodon 0.86" Neural Spine Fragment availablesoon After the close of theRare 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 0. 86" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail