Where: Wyoming (41.0° N, 105.9° W)

• Paleocoordinates: 10.8° N, 29.5° W (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Goose Egg Formation, Kungurian (283.3 - 274.4 Ma)

• Lower Goose Egg Formation

• bed-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified siliciclastic sediments

Size class: macrofossils

Reposited in the AMNH

Primary reference: N. D. Newell and D.W. Boyd. 1975. Parallel evolution in early trigonacean bivalves. Bulletin of the American Museum of Natural History 154(2):55-162 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136206: authorized by Matthew Clapham, entered by Matthew Clapham on 22.11.2012

Creative Commons license: CC0 (CC0)