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, edited by Nicholas Famoso

Creative Commons license: CC BY (attribution)

Taxonomic list

• stratigraphic level in Mascall type section not known
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Mammalia
 Perissodactyla - Equidae
Acritohippus isonesus2, Merychippus relictus
Acritohippus isonesus2 Cope 1889 horse
Merychippus relictus Cope 1889 horse
 Artiodactyla - Camelidae
Camelidae indet.3
Camelidae indet.3 Gray 1821 camel
 Rodentia - Sciuridae
Sciuridae indet.3, Arctomyoides sp.1
Sciuridae indet.3 Gray 1821 squirrel
Arctomyoides sp.1 Bryant 1945 squirrel
 Rodentia - Mylagaulidae
Mylagaulidae indet.1, Hesperogaulus gazini3
Mylagaulidae indet.1 Cope 1881 rodent
Hesperogaulus gazini3 Korth 1999 rodent
1Fremd 1994; 2Hulbert and MacFadden 1991; 3Maguire et al. 2018