Dimetrodon SOLD 1.55" Neural Spine Fragment giftsforher When placed on top

When placed on top

displaying a beautiful Widmanstätten pattern

This specimen is a fossilized Xiphactinus vertebrae pair

The specimen is enclosed in an acrylic specimen jar with a removable top

This is what gives petrified wood its distinct and beautiful appearance

Dimetrodon SOLD 1.55" Neural Spine Fragment giftsforher When placed on topRare 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. 55" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail