AMNH3113, Baldwin Creek (Permian of the United States)

Where: Wyoming (42.8° N, 108.8° W: paleocoordinates 14.0° N, 30.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, shelly/skeletal packstone

• Coquinoid layer in which silicification has welded adjacent specimens

Size class: macrofossils

Preservation: replaced with silica

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 81585: authorized by Matthew Clapham, entered by Matthew Clapham on 30.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Trigoniida - Myophoriidae
Paraschizodus elongatus n. gen. n. sp.
Paraschizodus elongatus n. gen. n. sp. Newell and Boyd 1975 clam