Ochotona spanglei

Ochotona spanglei Temporal range: Late Miocene or Early Pliocene, 10.3–4.9 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Lagomorpha
Family:	Ochotonidae
Genus:	Ochotona
Species:	O. spanglei
Binomial name
Ochotona spanglei Shotwell 1956[1][2][n 1]

Ochotona spanglei is an extinct species of pika (mammal in the family Ochotonidae), known from Late Miocene or Early Pliocene fossil from Oregon (USA).^{[1][2][n 1]} Fossils were also found in Nebraska referred to as Ochotona cf. spanglei.^{[2][3][n 1]}

Ochotona spanglei is the earliest known pika, which inhabited North America. Pika came at the Miocene-Pliocene boundary from Eurasia. Extinction of O. spanglei was followed by an approximately three-million-year-long gap in the known North American pikas record.^[4]

Fossil distribution

• McKay Reservoir, Oregon, McKay Formation, Hemphillian (10.3 - 4.9 Ma), Ochotona spanglei, the species was discovered here^{[2][n 2]} (described from a lower jaw with complete cheek dentition)^[1]
• Honey Creek, Nebraska, Hemphillian (10.3 - 4.9 Ma), Ochotona cf. spanglei^{[2][3][n 3]}
• Mailbox Prospect, Antelope County, Nebraska, Late/Upper Hemphillian (10.3 - 4.9 Ma), Ochotona cf. spanglei^{[2][3][n 4]}

Notes

1. Ochotona spanglei in the Paleobiology Database.^{[2][pdb 1][pdb 2][pdb 3]}
2. The Paleobiology Database collection: McKay Reservoir (Neogene of the United States).^{[pdb 4][pdb 1]}
3. The Paleobiology Database collection: Honey Creek (Neogene of the United States).^{[pdb 5][pdb 2]}
4. The Paleobiology Database collection: Mailbox (Neogene of the United States).^{[pdb 6][pdb 2]}

References

1. Shotwell, J. Arnold (1956). "Hemphillian mammalian assemblage from northeastern Oregon". Geological Society of America Bulletin (Geological Society America) 67 (6): 717–738. doi:10.1130/0016-7606(1956)67[717:HMAFNO]2.0.CO;2. Retrieved April 19, 2014.
2. "The Paleobiology Database. †Ochotona spanglei Shotwell 1956 (pika)". Retrieved April 19, 2014.
3. Voorhies, M. R. (1990). Gustavson, T. C., ed. Geologic Framework and Regional Hydrology: Upper Cenozoic Blackwater Draw and Ogallala Formations, Great Plains. Bureau of Economic Geology Guidebook. Bureau of Economic Geology, University of Texas.
4. Erbajeva, Margarita A.; Mead, Jim I.; Alexeeva, Nadezhda V.; Angelone, Chiara; Swift, Sandra L. (2011). "Taxonomic diversity of Late Cenozoic Asian and North American ochotonids (an overview)" (PDF). Palaeontologia Electronica (Society of Vertebrate Paleontology): 1–9. Retrieved April 13, 2014.

Additional references of the Paleobiology Database

1. Shotwell, J. A. (1956). "Hemphillian mammalian assemblage from Northeastern Oregon". Geological Society of America Bulletin 67. [J. Alroy/J. Alroy]
2. Voorhies, M. R. (1990). Gustavson, T. C., ed. Bureau of Economic Geology Guidebook. [J. Alroy/J. Alroy]
3. Additional contributors to utilized records of Paleobiology Database (authorizers supplying these records) include John Alroy.
4. "The Paleobiology Database collection: McKay Reservoir (Neogene of the United States)". Retrieved 2015-03-14. authorized by John Alroy
5. "The Paleobiology Database collection: Honey Creek (Neogene of the United States)". Retrieved 2015-03-14. authorized by John Alroy
6. "The Paleobiology Database collection: Mailbox (Neogene of the United States)". Retrieved 2015-03-14. authorized by John Alroy