Also known as JHH L6426

Where: Dawson County, Montana (47.1° N, 104.8° W: paleocoordinates 53.1° N, 79.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Ludlow Member (Fort Union Formation), Puercan (66.0 - 63.3 Ma)

Environment/lithology: terrestrial

Primary reference: J. P. Hunter. 1997. Mammals and mollusks across the Cretaceous-Tertiary boundary from Makoshika State Park and vicinity (Williston Basin), Montana. Contributions to Geology, University of Wyoming 32(1):61-114 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 14693: authorized by John Alroy, entered by John Alroy on 21.09.1998

Creative Commons license: CC BY (attribution)