Also known as SW Corner X21 maceration 2413

Where: Jefferson County, Ohio (40.6° N, 80.9° W: paleocoordinates 5.8° S, 16.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Mahoning Coal Member, Late/Upper Pennsylvanian (306.9 - 298.9 Ma)

• Sterling Mine - Coal Column 4 - NW Corner X21

• bed-level stratigraphic resolution

Environment/lithology: mire or swamp; coal

Size class: microfossils

Preservation: coalified, original sporopollenin

Collection methods: core, chemical,

Primary reference: W. A. DiMichele, C. F. Eble, and D. S. Chaney. 1996. A drowned lycopsid forest above the Mahoning Coal (Conemaugh Group, Upper Pennsylvanian) in eastern Ohio, U.S.A. International Journal of Coal Geology 31:249-276 [H. Sims/S. Ostrowski/J. Cassara] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 11268: authorized by Hallie Sims, entered by Summer Ostrowski on 30.07.2001