R. H. Mapes OKD-12 (Carboniferous of the United States)

Where: Pontotoc County, Oklahoma (34.8° N, 96.6° W: paleocoordinates 7.2° S, 32.5° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Atwood Shale Member (Wewoka Formation), Desmoinesian (312.8 - 306.0 Ma)

• Lower Wewoka Fm

Environment/lithology: marine; lithology not reported

Primary reference: B. Kröger and R. H. Mapes. 2005. Revision of some common Carboniferous genera of North American orthocerid nautiloids. Journal of Paleontology 79(5):1002-1011 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92473: authorized by Björn Kröger, entered by Björn Kröger on 15.11.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Pseudorthocerida - Pseudorthoceratidae
Pseudorthoceras knoxense McChesney 1859