Where: Grand County, Colorado (40.2° N, 105.3° W: paleocoordinates 46.6° N, 74.1° W)

When: Pierre Shale Formation, Campanian (83.6 - 72.1 Ma)

Environment/lithology: marine; nodular shale

Size class: macrofossils

Preservation: concretion

Primary reference: G. A. Bishop. 1988. New fossil crabs, Plagiopthalmus izetti, Latheticocarcinus sharpiroi, and Sagittiformosus carabus (Crustacea, Decapoda), from the western interior Cretaceous, U.S.A. Proceedings of the Biological Society of Washington 101(2):375-381 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 134953: authorized by Carrie Schweitzer, entered by Samantha Yost on 19.10.2012, edited by Mark Uhen

Creative Commons license: CC BY (attribution)