Dimetrodon 0.97" Neural Spine Fragment giftsforher " Science 208

" Science 208

81" slice of petrified wood from Arizona

limited edition

16" polished Cleoniceras fossil from Madagascar

though speculation ranges from thermoregulation to sexual dimorphism

Dimetrodon 0.97" Neural Spine Fragment giftsforher " Science 208Rare 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. 97" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail