Where: Fergus County, Montana (43.6° N, 109.4° W: paleocoordinates 50.9° N, 77.7° 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)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by C. H. Sternberg & C. M. Sternberg in 1914; reposited in the GSC

Primary reference: L. M. Lambe. 1915. Report of the vertebrate palaeontologist. Summary report of the Geological Survey Department of Mines for the Calendar Year 1914 1503:116-121 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59217: authorized by Matthew Carrano, entered by Matthew Carrano on 21.03.2006

Creative Commons license: CC BY (attribution)