Where: Nevada (41.6° N, 114.1° W: paleocoordinates 12.1° N, 37.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Thaynes Formation, Smithian (251.3 - 247.2 Ma)

• Meekoceras beds

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Preservation: mold/impression, replaced with silica

Reposited in the AMNH

Primary reference: N. D. Newell and D.W. Boyd. 1995. Pectinoid bivalves of the Permian-Triassic crisis. Bulletin of the American Museum of Natural History 227:1-95 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 44346: authorized by David Bottjer, entered by Catherine Powers on 08.09.2004

Creative Commons license: CC BY (attribution)