USGS Loc. 13757, Americus LS member, Foraker LS formation (Carboniferous of the United States)

Where: Cowley County, Kansas (37.3° N, 96.5° W: paleocoordinates 3.1° S, 29.1° W)

• outcrop-level geographic resolution

When: Americus Limestone Member (Foraker Limestone Formation), Noginian (301.2 - 300.2 Ma)

• The authors placed the Americus Limestone in the Permian, but more recent data indicates that it was late Carboniferous. The collection comes from the upper and middle limestones of the Americus and the shale bed separating them at this locality. The Noginskian stage is recognized as equivalent to the Virgilian Stage.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; gray limestone and calcareous shale

• 21) Limestone, hard, dense, dark-gray, weathers blocky; chertyin upper part; fusulinids abundant; crinoid columnals and brachiopods common;

•20) Shale, very calcareous, tan;

•19) Limestone, hard, dense, dark-gray, weathers blocky; fusulinids abundant; crinoid columnals common;

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 11832: authorized by Arnold Miller, entered by Chad Ferguson on 13.09.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Textularian microfossils listed as being present in the collection, but are unidentified.
Foraminifera
 Fusulinoidea - Schwagerinidae
 Fusulinoidea - Fusulinidae
Fusulinidae indet. Moeller 1878
Fragments and individuals in limestone
 Fusulinoidea - Eostaffellidae
Strophomenata
 Productida - Linoproductidae