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Extinct species of mammal
Ochotona spanglei is an
extinct species of
pika (
mammal in the family
Ochotonidae ), known from Late
Miocene - 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
^
a
b
c Ochotona spanglei in the Paleobiology Database.
[2]
[pdb 1]
[pdb 2]
[pdb 3]
^ The Paleobiology Database collection: McKay Reservoir (Neogene of the United States).
[pdb 4]
[pdb 1]
^ The Paleobiology Database collection: Honey Creek (Neogene of the United States).
[pdb 5]
[pdb 2]
^ The Paleobiology Database collection: Mailbox (Neogene of the United States).
[pdb 6]
[pdb 2]
References
^
a
b
c Shotwell, J. Arnold (1956). "Hemphillian mammalian assemblage from northeastern Oregon". Geological Society of America Bulletin . 67 (6). Geological Society America: 717–738.
Bibcode :
1956GSAB...67..717S .
doi :
10.1130/0016-7606(1956)67[717:HMAFNO]2.0.CO;2 .
^
a
b
c
d
e
f
g
"The Paleobiology Database. †Ochotona spanglei Shotwell 1956 (pika)" . Retrieved April 19, 2014 .
^
a
b
c 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.
^ 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