USGS Loc. 14906, Americus LS member, Foraker LS formation (Carboniferous of the United States)

Where: Brown County, Kansas (39.9° N, 95.7° W: paleocoordinates 1.2° S, 27.2° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Americus Limestone Member (Foraker Limestone Formation), Noginskian (301.2 - 300.1 Ma)

• The authors placed the Americus Limestone in the Permian, but more recent data indicates that it is late Carboniferous. The collection comes from the lower limestone bed 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, dark-gray, weathers tan-gray and 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 11783: authorized by Arnold Miller, entered by Chad Ferguson on 07.09.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Strophomenata
 Productida - Paucispiniferidae
"Marginifera wabashensis" = Hystriculina wabashensis
"Marginifera wabashensis" = Hystriculina wabashensis Norwood and Pratten 1855
 Orthotetida - Derbyiidae
Derbyia cf. crassa Meek and Hayden 1858
 Strophomenida - Rugosochonetidae
"Chonetes granulifer" = Neochonetes granulifer
"Chonetes granulifer" = Neochonetes granulifer Owen 1852
Rhynchonellata
 Spiriferida - Ambocoeliidae
Crurithyris sp. George 1931
 Athyridida - Athyrididae
Composita sp. Brown 1849
 Orthida - Rhipidomellidae
Rhipidomella carbonaria Shumard and Swallow 1858
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
Anthozoa
 Stauriida - Lophophyllidae
Lophophyllidium sp. Grabau 1928 horn coral