Dimetrodon 1.22" Neural Spine Fragment rockinaboxgastrolith The Space Shuttle Challenger (OV-099)

The Space Shuttle Challenger (OV-099) was the second of the space shuttles in the program to enter orbit

RAW GOLD NUGGET

This specimen comes from an early 14th-century paving brick uncovered in the Cannaregio sestiere during a recent renovation

834" in length

It dates to the Neolithic Period

Dimetrodon 1.22" Neural Spine Fragment rockinaboxgastrolith The Space Shuttle Challenger (OV-099)Rare 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