2.1" Fossil Phyllocarid (Dithyrocaris) - Bear Gulch Limestone, Montana

This is a beautiful fossil phyllocarid of the species Dithyrocaris rolfei that was collected from the Bear Gulch limestone of Fergus County, Montana. The crustacean itself is 2.1" long and preserved with excellent detail. The base of the limestone has been cut flat.

It comes with an acrylic display stand.

Phyllocarids are a type of arthropod that first 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: they may represent either a stem-lineage euarthropod or a primitive branchiopod crustacean.
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DETAILS
SPECIES
Dithyrocaris rolfei
LOCATION
Fergus County, Montana
FORMATION
Bear Gulch Limestone - Heath Shale Formation
SIZE
2.1” long phyllocarid on a 5 x 4.6" rock
ITEM
#113196
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