Dimetrodon SOLD 1.55" Neural Spine Fragment theropod This is a genuine segment

This is a genuine segment of superconducting cable from the LHC's magnet system — the lifeblood of the collider's high-energy particle beams

such as a hooked beak or talons

This Martian Meteorite Pendant is an acrylic disk that contains Martian surface material

It is estimated to be over 75

Artisans began using clay molds to work with the material

Dimetrodon SOLD 1.55" Neural Spine Fragment theropod This is a genuine segmentRare 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