ammonites
Willis Creek near Steubenville (Carboniferous of the United States)

Also known as Richmond

Where: Jefferson County County, Ohio (40.4° N, 80.7° W: paleocoordinates 6.3° S, 17.0° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Conemaugh Formation, Stephanian (306.9 - 298.9 Ma)

• "Conemaugh formation; Shales above Arnes Limestone. Oberes Obercarbon"

•"Lower Barren Coal-measures of Ohio, less than 100 feet above the crinoidal limestone…"Scudder, 1895

Environment/lithology: terrestrial; lithified, gray, green shale

• were found in a medium-dark-gray to olive-gray calcareous shale that dominates the outcrop. This shale also contains disseminated plant debris, scattered root traces, and abundant bivalves. Coincident

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression

Collected by S. Huston; reposited in the USNM

Collection methods: quarrying,

Primary reference: S. H. Scudder. 1895. Revision of the American fossil cockroaches with descriptions of new forms. Bulletin of the United States Geological Survey 124:1-176 [M. Clapham/J. Karr] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 123812: authorized by Matthew Clapham, entered by Jered Karr on 31.01.2012

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)