Dimetrodon 0.90" Neural Spine Fragment kritosaurus Known as a low-temperature surface

Known as a low-temperature surface insulation tile (LRSI)

the shells of ammonites had an inner layer known as the nacre or "mother of pearl"

38" sample of Red Planet Obsidian set into a sterling silver bezel

black obsidian beads for a refined look that is beautiful solo but pairs well with our Asteroid Belt Bracelet or other treasures you may already own

The exposed tooth measures 0

Dimetrodon 0.90" Neural Spine Fragment kritosaurus Known as a low-temperature surfaceRare 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