USGS Loc. 13470, Hamlin Shale member, Janesville Shale formation (Carboniferous of the United States)

Where: Pottawatomie County, Kansas (39.4° N, 96.3° W: paleocoordinates 1.4° S, 27.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hamlin Shale Member (Janesville Shale Formation), Noginskian (301.2 - 300.1 Ma)

• The authors placed the Hamlin Shale in the Permian, but more recent data indicates that it is late Carboniferous. The Noginskian stage is recognized as equivalent to the Virgilian stage.

• member-level stratigraphic resolution

Environment/lithology: marine; shale

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 11782: authorized by Arnold Miller, entered by Chad Ferguson on 07.09.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Algae is listed as being present in the collection, probably in the form of stromatolites, but is unidentified.
Life
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Protozoa indet. Goldfuss 1820