Unusual 2.2" Devonian Phyllocarid (Echinocaris) - Ohio

This is a unusual, fossil Phyllocarid (Echinocaris punctata ) from the Silica Formation in Ohio. Fossil phyllocarids are very unusual from this location and this is only the second I've had of the species.

Phyllocarid Crustaceans from the Middle Devonian Silica Shale of Northwestern Ohio and Southeastern Michigan

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.
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DETAILS
SPECIES
Echinocaris punctata
LOCATION
Silica Quarry, Silica, Ohio
FORMATION
Silica Formation
SIZE
2.2" long on 4.2x3.2" matrix
ITEM
#44383
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