ammonites
USGS Loc. 13614, French Creek Shale member, Root Shale formation (Carboniferous of the United States)

Where: Nemaha County, Kansas (40.0° N, 95.9° W: paleocoordinates 1.0° S, 27.3° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: French Creek Shale Member (Root Shale Formation), Noginian (301.2 - 300.2 Ma)

• The Noginskian stage is equivalent to the Virgilian stage

• member-level stratigraphic resolution

Environment/lithology: marine; limestone

• Impure Limestone (possilby silty LS)

Reposited in the USGS

Primary reference: M. R. Mudge, E. L. Yochelson, R. C. Douglas, H. Duncan, H. L. Strimple, M. Gordon, Jr., and D. H. Dunkle. 1962. Stratigraphy and Paleontology of the Uppermost Pennsylvanian and Lowermost Permian Rocks in Kansas. United States Geological Survey Professional Paper 323:1-213 [A. Miller/C. Ferguson/P. Wagner] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 11633: authorized by Arnold Miller, entered by Chad Ferguson on 28.08.2001