Birch Creek (Mascall Formation) (Miocene of the United States)

Also known as JDNM-70; Mascall 13; UCMP V-4827

Where: Wheeler County, Oregon (44.9° N, 120.2° W: paleocoordinates 44.8° N, 115.5° W)

• coordinate based on political unit

When: Mascall Formation, Miocene (23.0 - 5.3 Ma)

Environment/lithology: terrestrial

Primary reference: T. Downs. 1956. The Mascall fauna from the Miocene of Oregon. University of California Publications in Geological Sciences 31(5):199-354 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 18814: authorized by John Alroy, entered by John Alroy on 13.10.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• stratigraphic level in Mascall type section not known
Mammalia
 Rodentia - Sciuridae
Arctomyoides sp.1 Bryant 1945 squirrel
 Rodentia - Mylagaulidae
Mylagaulidae indet.1 Cope 1881 rodent
 Perissodactyla - Equidae
Merychippus relictus Cope 1889 horse
Acritohippus isonesus2 Cope 1889 horse