Dimetrodon SOLD 1.55" Neural Spine Fragment giftsforher is one of the most

is one of the most celebrated and iconic bridges in the world

Known to geology as the Green River formation

The remaining large bodies then settled into stable orbits

the specimen measures approximately 1mm x 1mm and is enclosed in an acrylic cube with a magnified lid for easy viewing

The specimen is enclosed in an acrylic specimen jar with a removable top

Dimetrodon SOLD 1.55" Neural Spine Fragment giftsforher is one of the mostRare 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. 55" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail