Dimetrodon SOLD 0.68" Neural Spine Fragment plesiosaur Please note: unlike the larger

Please note: unlike the larger

This is normal and occurs due to the fragmented nature of an airburst impact

this muscular carnivore dominated the North American food chain 100

We invite you to read more here: "35 Years Ago: Remembering Challenger and Her Crew"

Although the Gastornis’ 9 inch (22 cm) long beak may call to mind the terror birds of Cenozoic South America

Dimetrodon SOLD 0.68" Neural Spine Fragment plesiosaur Please note: unlike the largerRare 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. 68" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail