Where: Valley County, Montana (47.8° N, 107.3° W: paleocoordinates 54.2° N, 72.4° W)

When: Unit 6 Member (Bearpaw Formation), Campanian (83.6 - 72.1 Ma)

Environment/lithology: offshore; concretionary shale

Size class: macrofossils

Preservation: concretion

Collected by Barnum Brown; reposited in the AMNH

Primary reference: R. M. Feldmann, G. A. Bishop, and T. W. Kammer. 1977. Macrurous Decapods from the Bearpaw Shale (Cretaceous: Campanian) of Northeastern Montana. Journal of Paleontology 51(6):1161-1180 [M. Clapham/D. Sammanna]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 235831: authorized by Matthew Clapham, entered by Diya Sammanna on 07.08.2024

Creative Commons license: CC BY (attribution)