Where: Fergus County, Montana (45.8° N, 111.6° W: paleocoordinates 53.4° N, 79.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Judith River Formation (Montana Group), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• ".. Judith River beds ..."

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by J. B. Hatcher, W. Utterback & Silberling in 1903; reposited in the CM

Primary reference: W. J. Holland. 1905. Section of Paleontology. Annual Report of the Director for the Year Ending March 31, 1905 21-25 [M. Carrano/A. Murch/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128560: authorized by Roger Benson, entered by Roger Benson on 11.06.2012, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)