Name:
Elrathina cordillerae (Rominger, 1887) (= Ptychoparella cordillerae)
Order Ptychopariida, Superfamily Ptychparioidea, Family Ptychopariidae
Locality: Pend Oreille County, Washington
Stratigraphy: Middle Cambrian, Metaline Limestone
Remarks: Left
photo
Natural
Canvas; Right
photo: courtesy David Morgan
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Western
Trilobites Association:
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