Dimetrodon 0.90" Neural Spine Fragment therapod Above: Luis (left) and Walter

Above: Luis (left) and Walter Alvarez at the K-Pg Boundary in Gubbio

000 year old sauropod

The middle of the 2nd millennium BCE witnessed an explosion of faience production in Egypt

Examinations of petrified wood left from such trees indicate they would have lived during the late Triassic period

(Source: WikiMedia)

Dimetrodon 0.90" Neural Spine Fragment therapod Above: Luis (left) and WalterRare 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. 90" fossil fragment of the Dimetrodon's iconic spine. The purpose of the spine sail