Dimetrodon SOLD 1.03" Neural Spine Fragment chicago AMMONITE (c

AMMONITE (c

These features were created when shipworms ate holes in prehistoric driftwood

designer of the Cray-1 Supercomputer

The dire wolf was one of the most successful predators of the late Pleistocene epoch

The necklaces are shipped within a small anti-tarnish bag to protect the silver elements of the piece during storage and transport

Dimetrodon SOLD 1.03" Neural Spine Fragment chicago AMMONITE (cRare 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. 03" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail