Two Rare Silurian Phyllocarid (Ceratiocaris) Fossils - Scotland
These are two rare, Silurian aged Phyllocarids (Ceratiocaris papilio) collected in Scotland. They're 4.4" and 4" in length and are well preserved on a nice section of shale. There is an additional Ceratiocaris specimen on this shale slab, however only the abdominal segments are present. There is a repaired crack through this rock. Comes with an acrylic display stand.
Phyllocarids are a type of arthropod that developed during the Cambrian. They had a hard protective shell, hinged carapace, and were thought to have a lifestyle similar to shrimp. Exactly how they fit into the arthropod taxonomy is still under debate, with it being proposed to represent a stem-lineage euarthropod or a primitive branchiopod crustacean.