R. H. Mapes OKD-30 (Carboniferous of the United States)

Where: Hughes County, Oklahoma (35.3° N, 96.3° W: paleocoordinates 6.8° S, 32.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Lake Neosho Shale Member (Holdenville Formation), Desmoinesian (312.8 - 306.0 Ma)

• Lower Holdenville 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 92478: 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