Dimetrodon SOLD 0.72" Neural Spine Fragment showcase2025sale20 and Peter R

and Peter R

Nearly two thousand miles of open ocean separated the closest two points between Europe and North America

This particular fossil is a Dendraster Gibbsii from the San Joaquin Valley deposit

literature

Dimetrodon SOLD 0.72" Neural Spine Fragment showcase2025sale20 and Peter RRare 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. 72" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail