ammonites
USGS 21548 (Cretaceous of the United States)

Where: Fremont County, Wyoming (43.0° N, 108.8° W: paleocoordinates 46.7° N, 73.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Scaphites depressus ammonoid zone, Cody Shale Formation, Late/Upper Coniacian (89.3 - 85.8 Ma)

• 175-181 m above base

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: I. Walaszczyk and W. A. Cobban. 2006. Palaeontology and stratigraphy of the Middle-Upper Coniacian and Santonian inoceramids of the US Western Interior. Acta Geologica Polonica 56(3):241-348 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 100162: authorized by Wolfgang Kiessling, entered by Uta Merkel on 01.12.2010