Also known as Princeton Locs. 11 and 13

Where: Sweetgrass County, Montana (45.8° N, 109.8° W: paleocoordinates 51.8° N, 89.1° W)

• coordinate based on political unit

When: "Fort Union No. 3" (= Melville) Formation, Tiffanian (61.7 - 56.8 Ma)

• in a stratigraphically isolated reversed polarity zone interpreted as chron C26r: Butler et al. 1987

Environment/lithology: terrestrial

Primary reference: G. G. Simpson. 1937. The Fort Union of the Crazy Mountain field, Montana and its mammalian faunas. Bulletin of the United States National Museum 169:1-287 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 15037: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)