Where: Johnson County, Wyoming (44.1° N, 106.8° W)

• Paleocoordinates: 50.6° N, 63.1° W (Wright 2013)

• coordinate stated in text

• outcrop-level geographic resolution

When: Sciponoceras gracile ammonoid zone, Belle Fourche Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: concretion

Reposited in the USNM

Primary reference: W. A. Cobban. 1988. Some acanthoceratid ammonites from upper Cenomanian (Upper Cretaceous) rocks of Wyoming. United States Geological Survey Professional Paper 1353:1-15 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 233803: authorized by Pete Wagner, entered by Pete Wagner on 28.02.2024

Creative Commons license: CC0 (CC0)