Dimetrodon 1.07" Neural Spine Fragment britishhistory 72" fossil fragment of the

72" fossil fragment of the Dimetrodon's iconic spine

a Cretaceous Period deposit that dates back over 66 million years

symmetrical forms found in their starfish cousins

807" polished Phylloceras fossil from Madagascar

much of the shuttle was built from leftover parts from the other orbiters

Dimetrodon 1.07" Neural Spine Fragment britishhistory 72" fossil fragment 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 1. 07" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail