Dimetrodon SOLD 1.55" Neural Spine Fragment giftsforher though they were often mistaken

though they were often mistaken for fish

The remaining large bodies then settled into stable orbits

This specimen is a fossilized Xiphactinus vertebrae pair

Images on this page convey typical specimens

Known to geology as the Green River formation

Dimetrodon SOLD 1.55" Neural Spine Fragment giftsforher though they were often mistakenRare 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