USGS Loc. 13449, Americus LS member, Foraker LS formation (Carboniferous of the United States)

Where: Pottawatomie County, Kansas (39.3° N, 96.4° W: paleocoordinates 1.4° S, 28.0° W)

• coordinate based on nearby landmark

• 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 is late Carboniferous. Collection comes from the upper limestone of the Americus at this locality. The Noginskian Stage is recognized as equivalent to the Virgilian Stage.

• bed-level stratigraphic resolution

Environment/lithology: marine; gray limestone

• Limestone, hard, blue-gray, massive, weathers blocky

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 11789: authorized by Arnold Miller, entered by Chad Ferguson on 07.09.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita indet. Walch 1771 trilobite
 Productida - Productellidae
Marginifera sp. Waagen 1884
 Productida - Productidae
"Dictyoclostus huecoensis" = Reticulatia huecoensis
"Dictyoclostus huecoensis" = Reticulatia huecoensis King 1931
 Productida - Rugosochonetidae
"Chonetes granulifer" = Neochonetes granulifer Owen 1852
Lissochonetes geronticus Dunbar and Condra 1932
 Orthotetida - Meekellidae
 Athyridida - Athyrididae
Composita sp. Brown 1849
 Spiriferida - Trigonotretidae
Neospirifer sp. Fredericks 1919
 Spiriferida - Ambocoeliidae
Crurithyris sp. George 1931
 Ctenacanthiformes - Ctenacanthidae
Cladodus sp. Agassiz 1843 elasmobranch
 Petalodontiformes - Petalodontidae
Petalodus cf. ohioensis Safford 1853 chimaera
Crinoidea indet. Miller 1821 Sea lily
 Stauriida - Lophophyllidiidae
Lophophyllidium sp. Grabau 1928 horn coral