Where: Bear Lake County, Idaho (42.2° N, 111.4° W: paleocoordinates 11.7° N, 35.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified carbonate

Size class: macrofossils

Primary reference: A. Hyatt and J. P. Smith. 1905. The Triassic cephalopod genera of America. United States Geological Survey Professional Paper 40:1-394 [D. Bottjer/C. Powers/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33292: authorized by David Bottjer, entered by Catherine Powers on 24.07.2003