Where: Wheatland County, Montana (46.2° N, 109.9° W: paleocoordinates 52.8° N, 86.8° W)

• coordinate based on political unit

When: "Fort Union" (= Lebo) Formation, Torrejonian (63.3 - 61.7 Ma)

Environment/lithology: terrestrial

Primary reference: G. G. Simpson. 1937. Bulletin of the United States National Museum 169 [J. Alroy/J. Alroy] more details

PaleoDB collection 14908: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)