Where: Wyoming (41.6° N, 110.7° W: paleocoordinates 13.8° N, 32.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Grandeur Member (Phosphoria Formation), Kungurian (279.3 - 272.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

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 95420: authorized by Matthew Clapham, entered by Matthew Clapham on 15.04.2010

Creative Commons license: CC BY (attribution)