banks of Missouri River (Cretaceous of the United States)

Where: South Dakota (43.3° N, 99.1° W: paleocoordinates 40.7° N, 55.7° W)

When: Pierre shale Formation, Cretaceous (145.0 - 66.0 Ma)

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Primary reference: M. J. Rathbun. 1930. A new Callianassa from the Cretaceous of South Dakota. Journal of the Washington Academy of Sciences 20(1):1-3 [C. Schweitzer/S. Yost]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135805: authorized by Carrie Schweitzer, entered by Samantha Yost on 09.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Decapoda - Callianassidae
Callianassa cheyennensis Rathbun 1930 decapod