Dimetrodon SOLD 0.65" Neural Spine Fragment labradorite While prehistoric fish came in

While prehistoric fish came in all shapes and sizes

This specimen first appeared in the Fourth Edition of the Mini Museum

was discovered with a similar tooth shape

Billions of years pass before the first stirrings of life

Please note: This specimen cannot be returned or exchanged

Dimetrodon SOLD 0.65" Neural Spine Fragment labradorite While prehistoric fish came 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. 65" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail