DENISON, 1979…”R. sp has been reported from the middle Devonian (Eifelian), Jeffersonville Formation, Indiana, U.S. A. (WELLS, 1944); from the Givetian, Tully Formation, New York, U.S.A. (WELLS, 1937) and Cuboides zone, Manitoba, Canada (EASTMAN, 1907); from the Upper Devonian (Frasinian), Snetogor and Pskov stages, ain Devonian field, U.S.S.R. (OBRUCHEVA 1962); form the Upper Devonan, High Ponit sandstoen, New York. U.S. A. (CLARKE, 1885) and New albany shale, Kentucky, U.S.A. (EASTMAN, 1908); and from the Lower Mississippian, base of Waverly formation, Kentucky, U.S.A. (EASTMAN, 1908)…”

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DERYCKE, BRICE, BLIECK & MOURAVIEFF, 1995

Locality: Banc Noir Quarry 5, Boulonnais-Artois-Ardenne, Northern France.

Horizon: Beaulieu Formation, lower asymmetricus zone.

Biostratigraphy:

Age: Lower Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material:

CVUL 37:

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HUSSAKOF, 1908

Locality: Delaware, Delaware County, Ohio.

Horizon: Delaware limestone.

Biostratigraphy:

Age: Middle Devoinan.

Material:

AMNH 294: Somewhat quadrangular plate, probably a fragmentary dental element.

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