Dimetrodon SOLD 1.02" Neural Spine Fragment rockinaboxplant 63" polished Phylloceras fossil from

63" polished Phylloceras fossil from Madagascar

86" in length along its longest side

ceratopsians

isolated from each other by mutual gravitational perturbations

Dimetrodon SOLD 1.02" Neural Spine Fragment rockinaboxplant 63" polished Phylloceras fossil fromRare 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. 02" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail