Gerastos Trilobite Fossils, In Matrix entomology This massive egg measures ~16

This massive egg measures ~16

Resin-cast

These are beautiful rough blue Indian sapphires

5”x12” as displayed with mouth open

Gerastos Trilobite Fossils, In Matrix entomology This massive egg measures ~16Real trilobites for sale! These ~1" long trilobites (most likely Gerastos granulosus) date back to the Devonian and were found in Morocco. Resembling horseshoe crabs, trilobites are an extinct group of arthropods that died off in the Permian mass extinction ~252 million years ago. They were one of the most successful and iconic of all early animals spreading across most of the globe and surviving for an incredible 270 million years! These are