Where: Powell County, Montana (47.5° N, 113.4° W: paleocoordinates 5.2° S, 84.2° W)

• coordinate based on nearby landmark

When: Plagiura - Poliella trilobite zone, Gordon Shale Formation, Delamaran (511.2 - 506.5 Ma)

• Not specified but should be Gordon Shale.

• formation-level stratigraphic resolution

Environment/lithology: marine; shale

Size class: macrofossils

Reposited in the USNM

Primary reference: C. D. Walcott. 1912. Cambrian geology and paleontology 2. No. 8: The Sardinian Cambrian genus Olenopsis in America. Smithsonian Miscellaneous Collections 57(8):239-249 [S. Devincenzi/S. Devincenzi/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225273: authorized by Pete Wagner, entered by Pete Wagner on 01.05.2022, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)