Where: Dewey County, South Dakota (45.1° N, 101.5° W: paleocoordinates 50.9° N, 75.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jeletzkytes nebrascensis ammonoid zone, Timber Lake Member (Fox Hills Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, concretionary sandstone

Size class: macrofossils

Collection methods: Repository: Black Hills Institute (BHI)

Primary reference: N. L. Larson. 2010. Fossil coleoids from the Late Cretaceous (Campanian & Maastrichtian) of the Western Interior. Ferrantia 59:78-113 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 212990: authorized by Matthew Clapham, entered by Matthew Clapham on 23.08.2020

Creative Commons license: CC BY (attribution)