This Specimen has been sold.
3.6" Rare Silurian Phyllocarid (Ceratiocaris) - Scotland
This is an rare, Silurian aged Phyllocarid (Ceratiocaris papilio) collected in Scotland. It's 3.6" in length and it's exceptionally well preserved on a thick block of shale. There is one repaired crack in the rock. Comes in a riker mount display case. They don't get any nicer than this!
Phyllocarids are a type of arthropod that developed during the Cambrian. They had a hard, protective shell and hinged carapace and were thought to have a life-style similar to shrimp. Exactly how they fit into arthropod the taxonomy is still under debate with it being proposed to represent a stem-lineage euarthropod or a primitive branchiopod crustacean.