Eurypterids have been reported at only 4 places in West Virginia. A new eurypterid horizon is described at one of these localities. At least 4 genera are present in the Wills Creek formation. A single fragment of an Eurypterus may have been obtained from the overlying Tonoloway formation. The prosoma of Dolichopterus cumberlandicus Swartz is redescribed on the basis of a newly discovered specimen.

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