Dimetrodon 0.81" Neural Spine Fragment rockinaboxmanhattan Pieces range in size from

Pieces range in size from 1" to 2"

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Please Note: This specimen first appeared in the Third Edition of the Mini Museum (MM3)

Dimetrodon 0.81" Neural Spine Fragment rockinaboxmanhattan Pieces range in size 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 0. 81" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail