Where: Columbiana County, Ohio (40.7° N, 80.7° W: paleocoordinates 6.6° S, 17.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Brush Creek Member (Mahoning Formation), Stephanian A (305.1 - 301.5 Ma)

• Considered equivalent to rocks of early Missourian/Stephanian A age.

• group of beds-level stratigraphic resolution

Environment/lithology: mire or swamp; lithified, pyritic, black, gray, argillaceous, carbonaceous shale

Size class: macrofossils

Preservation: adpression, permineralized, replaced with pyrite

Primary reference: M. A. McComas. 1988. Upper Pennsylvanian compression floras of the 7-11 Mine, Columbiana County, northeastern Ohio. Ohio Journal of Science 88:48-52 [H. Sims/S. Ostrowski]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 11188: authorized by Hallie Sims, entered by Summer Ostrowski on 23.07.2001, edited by Alistair McGowan, Jason Cassara and Matthew Clapham

Creative Commons license: CC BY (attribution)