Dimetrodon SOLD 1.55" Neural Spine Fragment theropod It is estimated to be

It is estimated to be over 75

The specimen in Age of Dinosaurs is a mixture of the portions of three distinct phases of the main eruption donated by Professor Gerta Keller of Princeton University

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

such as a hooked beak or talons

these fossil snails are estimated to number in the billions

Dimetrodon SOLD 1.55" Neural Spine Fragment theropod It is estimated to beRare 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