Dimetrodon SOLD 0.56" Neural Spine Fragment rockinaboxamethyst such as geese and ducks

such as geese and ducks

This specimen is a complete Mosasaur fossil tooth

-Anthelme Brillat-Savarin

While these formations do not appear often in nature

Dimetrodon SOLD 0.56" Neural Spine Fragment rockinaboxamethyst such as geese and ducksRare 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. 56" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail