ammonites
Jmi-2. 15 cm shale zone immediately above limestone. Small abandoned drift mine on N side of Buffler Run, south-center (Carboniferous of the United States)

Also known as was: Buffer Run, Vanport Unit, Jackson

Where: Jackson County, Ohio (39.1° N, 82.5° W: paleocoordinates 8.6° S, 20.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Shale Member (Vanport Formation), Desmoinesian (313.8 - 305.9 Ma)

• The specimens were found in the shale just above the limestone.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone and lithified shale

• The shale is black to dark gray and slightly calcareous.

Size class: macrofossils

Primary reference: D. K. Brezinski, M. T. Sturgeon, and R. D. Hoare. 1989. Pennsylvanian trilobites of Ohio. Report of Investigations 142:1-18 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 71963: authorized by Wolfgang Kiessling, entered by Uta Merkel on 18.05.2007, edited by Pete Wagner