Where: Wheatland County, Montana (46.2° N, 109.9° W: paleocoordinates 53.4° N, 77.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: "channel"; mudstone

Size class: mesofossils

Primary reference: A. R. Fiorillo. 1989. The vertebrate fauna from the Judith River Formation (Late Cretaceous) of Wheatland and Golden Valley counties, Montana. Mosasaur 4:127-142 [J. Alroy/J. Alroy/H. Street] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 50906: authorized by Matt Carrano, entered by Matt Carrano on 24.05.2005, edited by John Alroy