Dimetrodon SOLD 1.12" Neural Spine Fragment rockinaboxacrylic " International Journal of Astrobiology

" International Journal of Astrobiology

82" fossil fragment of the Dimetrodon's iconic spine

This specimen is a fragment of Tyrannosaurus rex bone

the Empire State Building was the tallest building on the planet

plus a spiked tail for use in combat

Dimetrodon SOLD 1.12" Neural Spine Fragment rockinaboxacrylic " International Journal of AstrobiologyRare 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. 12" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail