Dimetrodon SOLD 0.92" Neural Spine Fragment dracula Filaments are 6 micrometers in

Filaments are 6 micrometers in diameter — 10× thinner than a human hair

with species evolved for hunting in schools

also serving as the certificate of authenticity

Hadrosaurs were a large family of ornithischian dinosaurs from the Cretaceous Period

The stone can form in various colors

Dimetrodon SOLD 0.92" Neural Spine Fragment dracula Filaments are 6 micrometers inRare 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. 92" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail