Dimetrodon SOLD 0.70" Neural Spine Fragment rockinaboxcoprolite This pendant contains a 1

This pendant contains a 1

This specimen is a polished slab of Atlasaurus bone

TRINITITE (First nuclear bomb test)

including the Permian–Triassic "Great Dying" which wiped out 96% of all marine species

also known as the Holocene

Dimetrodon SOLD 0.70" Neural Spine Fragment rockinaboxcoprolite This pendant contains a 1Rare 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. 70" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail