Where: Daniels County, Montana (48.8° N, 105.5° W: paleocoordinates 49.1° N, 103.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Flaxville Gravels Formation, Late/Upper Miocene to Late/Upper Miocene (11.6 - 2.6 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: N. M. Denson and J. R. Gill. 1965. Uranium-bearing lignite and carbonaceous shale in the southwestern part of the Williston Basin - a regional study, with a section on heavy minerals in Cretaceous and Tertiary rocks associated with uranium occurrences. United States Geological Survey Professional Paper 463:1-75 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18891: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)