Where: Idaho (43.2° N, 111.4° W: paleocoordinates 13.6° N, 34.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dinwoody Formation, Griesbachian (251.9 - 250.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified limestone

Size class: macrofossils

Primary reference: B. Kummel. 1953. American Triassic coiled nautiloids. United States Geological Survey Professional Paper 250:1-104 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 110962: authorized by Matthew Clapham, entered by Matthew Clapham on 16.06.2011

Creative Commons license: CC BY (attribution)