Where: Idaho (42.9° N, 111.7° W: paleocoordinates 12.4° N, 35.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Thaynes Formation, Olenekian (251.2 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, calcareous sandstone

Size class: macrofossils

Collected by A.C. Peale in 1877

Primary reference: C. A. White. 1879. Paleontological papers no. 9: fossils of the Jura-Trias of southeastern Idaho. Bulletin of the United States Geological and Geographical Survey of the Territories 5:105-117 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120987: authorized by Matthew Clapham, entered by Matthew Clapham on 24.11.2011

Creative Commons license: CC BY (attribution)