3 miles west of Starkville (Paleocene of the United States)

Also known as M 500

Where: Oktibbeha County, Mississippi (33.5° N, 88.9° W: paleocoordinates 36.7° N, 68.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Clayton Formation (Midway Group), Danian (66.0 - 61.6 Ma)

• Clayton spans most of Danian, including nanofossil zones NP1, NP2, and NP3; foram zones P1a and P1c (absence of P1b attributed to ecological factors rather than a hiatus, by Schulte & Speijer, 2009).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• Clayton primarily represents littoral (foreshore) and inner and middle neritic (offshore transition zone). The majority of the thickness likely represents offshore transition, with some shoreface settings, but with no stratigraphic or lithologic information this collection cannot be assigned an environment.
• Much of the formation is composed of calcareous sandstones, but also marls and sandy packstones.

Size class: mesofossils

Reposited in the SUI

Primary reference: A. K. Miller and M. L. Thompson. 1933. The nautiloid cephalopods of the Midway Group. Journal of Paleontology 7(3):298-324 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98516: authorized by Jocelyn Sessa, entered by Ursula Smith on 07.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Nautilida - Hercoglossidae
Cimomia subrecta
Cimomia subrecta Miller and Thompson 1933 nautiloid