Dimetrodon 0.97" Neural Spine Fragment jellyfish Woolly Rhinoceros (Bone)

Woolly Rhinoceros (Bone)

Please Note: You should not expect to receive a perfectly round specimen

The Grateful Dead

TRINITITE (First nuclear bomb test)

Dimetrodon 0.97" Neural Spine Fragment jellyfish Woolly Rhinoceros (Bone)Rare 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. 97" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail