Also known as Was: Roadcut along US 42, southwestern Ohio, Waynesville Formation, T. duseri shale

Where: Warren County, Ohio (39.5° N, 84.1° W: paleocoordinates 25.7° S, 57.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Aphelognathus grandis conodont zone, Fort Ancient Member (Waynesville Formation), Richmondian (449.6 - 445.5 Ma)

• Richmondian; Unit located about 11-13 m above Arnheim-Waynesville contact. Treptoceras duseri shale

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; blue claystone

Size class: macrofossils

Primary reference: R. C. Frey. 1988. Paleoecology of Treptoceras duseri (Michelinoceratida, Proteoceratidae) from Late Ordovician of southwestern Ohio. New Mexico Bureau of Mines and Mineral Resources Memoir 44:79-101 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 27499: authorized by Steven Holland, entered by Tori Hanson on 07.12.2002, edited by Pete Wagner, Alycia Stigall and Torsten Liebrecht

Creative Commons license: CC BY (attribution)