Where: Utah (40.9° N, 109.6° W: paleocoordinates 12.7° N, 31.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Grandeur Member (Park City Formation), Kungurian (279.5 - 272.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: mold/impression

Primary reference: K.W. Ciriacks. 1963. Permian and Eotriassic bivalves of the middle Rockies. Bulletin of the American Museum of Natural History 125(1):1-100 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105281: authorized by Matthew Clapham, entered by Matthew Clapham on 18.02.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)