2.1" Primitive Horseshoe Crab (Protolimulus) Fossil - Pennsylvania

 
This is a very rare, 2.1" long primitive horseshoe crab fossil (Protolimulus eriensis) that was collected from the Upper Devonian, Venango Formation of Erie County, Pennsylvania. Only a very small number of these were collected from a now inaccessible site and this one comes out of an old collection we recently acquired.

A description of this species from 1938 is linked below.

Note on the Xiphosuran, Protolimulus eriensis Williams
DETAILS
SPECIES
Protolimulus eriensis
LOCATION
Erie County, Pennsylvania
FORMATION
Chadakoin/Venango Formation
SIZE
Fossil 2.1 x 1.9" on 3.7 x 3.6" rock
ITEM
#113220
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