Dimetrodon 1.22" Neural Spine Fragment cleoniceras Crinoids emerged in the fossil

Crinoids emerged in the fossil record over 541

The 13 Specimen (SMALL) measures approximately 4" tall x 3" wide x 1" thick and contains 13 different specimens:

306" scraper from North Africa and is dated to roughly 12

making these trace elements responsible for the array of sunset colors that appear within petrified wood

Dimetrodon 1.22" Neural Spine Fragment cleoniceras Crinoids emerged in the fossilRare 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. 22" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail