Article · Wikipedia archive · Last revised Jun 12, 2026

Deep River Formation

The Deep River Formation is a geologic formation in Montana. It preserves fossils dating back to the Neogene period.

Last revised
Jun 12, 2026
Read time
≈ 1 min
Length
112 w
Citations
2
Source
Deep River Formation
Stratigraphic range: Neogene
TypeFormation
Location
RegionMontana
CountryUnited States

The Deep River Formation is a geologic formation in Montana. It preserves fossils dating back to the Neogene period.

Fauna

Fauna reported from the Deep River Formation
Genus Species Location Stratigraphic position Material Description Images

Proscalops1

Mandible, two humeri, femur1
See also

See also

References

References

  1. Barnosky, Anthony D. (1982). "A New Species of Proscalops (Mammalia, Insectivora) from the Arikareean Deep River Formation, Meagher County, Montana". Journal of Paleontology. 56 (5): 1103–1111. JSTOR 1304567.