Where: Fergus County, Montana (47.3° N, 109.3° W: paleocoordinates 54.3° N, 75.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Scaphites hippocrepis II ammonoid zone, Eagle Sandstone Formation (Montana Group), Early/Lower Campanian (83.5 - 70.6 Ma)

• lower Eagle Sandstone

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

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 100163: authorized by Wolfgang Kiessling, entered by Uta Merkel on 01.12.2010

Creative Commons license: CC BY (attribution)