Where: Pottawatomie County, Kansas (39.4° N, 96.2° W: paleocoordinates 1.4° S, 27.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hawxby Shale Member (Onaga Shale Formation), Noginskian (301.2 - 300.1 Ma)

• The authors placed the Onaga Shale in the Permian, but more recent data indicates it is late Carboniferous.

•The Noginskian Stage is reported as equivalent to the Virgilian Stage.

•Some contradiction exists within the source regarding placement of this collection between the Onaga Shale Fm and the Falls City Fm. Onaga is believed to be the correct formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; gray, green, calcareous claystone

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 11714: authorized by Arnold Miller, entered by Chad Ferguson on 31.08.2001

Creative Commons license: CC BY (attribution)