McKay Reservoir: Hemphillian, Oregon
collected by J. A. Shotwell, G. Shotwell 1950

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Rodentia - Aplodontidae
Liodontia sp. Miller and Gidley 1918
1 specimen
Mammalia - Rodentia - Sciuridae
Eutamias sp. Trouessart 1880
    = Neotamias sp. Howell 1929
Martin 1998
DUPLICATE REF 2415 or 6090
Citellus wilsoni n. sp. Shotwell 1956
41 specimens
    = Spermophilus wilsoni Shotwell 1956
Alroy 2002
Citellus mckayensis n. sp. Shotwell 1956
1 specimen
    = Spermophilus mckayensis Shotwell 1956
Alroy 2002
Marmota oregonensis Shotwell 1956
4 specimens
(1 measurement)
    = Parapaenemarmota oregonensis Shotwell 1956
Alroy 2002
Mammalia - Rodentia - Geomyidae
Pliosaccomys dubius Wilson 1936
7 specimens
    = Parapliosaccomys oregonensis Shotwell 1967
Shotwell 1967
Mammalia - Rodentia - Heteromyidae
Perognathus sp. Maximillian 1839
    = Perognathinae indet. Coues 1875
Martin 1984
UWBM C0128; definitely not Oregonomys DUPLICATE REF 2411 or 2424
Dipodomys sp. Gray 1841
    = Dipodomyinae indet.
Alroy 2002
replaces ID of Shotwell 1967b
Perognathus sargenti n. sp. Shotwell 1956
1 specimen
(1 measurement)
    = Oregonomys sargenti Shotwell 1956
Alroy 2002
Mammalia - Rodentia - Eomyidae
Leptodontomys oregonensis n. sp. Hibbard 1970
1 specimen
Mammalia - Rodentia - Castoridae
Castor sp. Linnaeus 1758
1 specimen
Dipoides smithi n. sp. Shotwell 1955
66 specimens
see Shotwell 1955: count excludes miscellaneous postcrania
Mammalia - Rodentia - Mylagaulidae
Mylagaulus sp. Cope 1878
2 specimens
    = Hesperogaulus wilsoni Korth 1999
Korth 1999
Mammalia - Rodentia - Zapodidae
Pliozapus solus Wilson 1936
3 specimens
Mammalia - Rodentia - Cricetidae
Peromyscus valensis Shotwell 1967
(1 measurement)
    = Antecalomys cf. valensis Shotwell 1967
Shotwell 1967
recombined as Postcopemys valensis
UO 2222
Peromyscus antiquus Kellogg 1910
Shotwell 1967
UO 2222
Peromyscus cf. esmeraldensis (Clark et al. 1964)
(1 measurement)
    = Copemys esmeraldensis Clark et al. 1964
Lindsay 1972
Prosomys mimus n. sp. Shotwell 1956
4 specimens
misspelt P. "mimmus" in faunal list (1 measurement)
Peromyscus cf. pliocenicus Wilson 1937
Shotwell 1967
recombined as Basirepomys pliocenicus
UO 2222
Mammalia - Lagomorpha - Leporidae
Hypolagus oregonensis n. sp. Shotwell 1956
246 specimens
(1 measurement)
Mammalia - Lagomorpha - Ochotonidae
Ochotona spanglei n. sp. Shotwell 1956
26 specimens
misspelt "spangelei" in faunal list and abstract
Mammalia - Talpidae
Hydroscapheus americanus n. sp. Shotwell 1956
8 specimens
    = Gaillardia thomsoni Matthew 1932
Alroy 2002
? Neurotrichus columbianus Hutchison 1968
Hutchison 1968
recombined as Yanshuella columbiana
(2 measurements)
? Scalopoides sp. Wilson 1960
Hutchison 1968
forms "D" and "E"
Scapanus cf. proceridens Hutchison 1968
Hutchison 1968
Mammalia - Chiroptera
Chiroptera indet. Blumenbach 1779
2 specimens
a bat
Mammalia - Perissodactyla - Rhinocerotidae
Teleoceras sp. Hatcher 1894
120 specimens
    = Teleoceras hicksi Cook 1927
Prothero 2005
Mammalia - Perissodactyla - Equidae
Hipparionini indet. Quinn 1955
14 specimens
"Hipparion" and "? Neohipparion"; latter specimen is indeterminate, former has a hypoconal lake in apparent middle wear but is too large and complex to be Pseudhipparion
Mammalia - Tayassuidae
Prosthennops brachirostris n. sp. Shotwell 1956
92 specimens
    = Platygonus brachirostris Shotwell 1956
Alroy 2002
Mammalia - Camelidae
Camelidae indet. Gray 1821
16 specimens
"Procamelus or Pliauchenia" and "Paracamelus" (Megatylopus or Aepycamelus)
Mammalia - Carnivora - Felidae
Machairodus sp. Kaup 1833
5 specimens
    = Machairodus lahayishupup Orcutt and Calede 2021
Orcutt and Calede 2021
Felis longignathus n. sp. Shotwell 1956
5 specimens
    = Lynx longignathus Shotwell 1956
Alroy 2002
Mammalia - Carnivora - Mustelidae
Plesiogulo sp. Zdansky 1934
2 specimens
    = Plesiogulo marshalli Martin 1928
Harrison 1981
Mustela sp. Linnaeus 1758
Shotwell 1958 1 specimen
Pliotaxidea sp. Hall 1944
1 specimen
    = Pliotaxidea nevadensis Butterworth 1916
Wagner 1976
Mammalia - Carnivora - Canidae
Canis condoni n. sp. Shotwell 1956
47 specimens
    = Eucyon davisi Merriam 1911
Alroy 2002
9 specimens
    = Epicyon saevus Leidy 1858
Alroy 2002
comparisons are to "O. diabolensis" and "O. littoralis"
Mammalia - Proboscidea - Mammutidae
? Mammutidae indet. Hay 1922
1 specimen
Reptilia - Charadriiformes - Scolopacidae
Bartramia umatilla n. sp. Brodkorb 1958
Brodkorb 1958
Reptilia - Anseriformes - Anatidae
Nettion bunkeri Wetmore 1944
Brodkorb 1958
Reptilia - Odontophoridae
Lophortyx shotwelli n. sp. Brodkorb 1958
Brodkorb 1958
see common names

Geography
Country:United States State/province:Oregon County:Umatilla
Coordinates: 45.5° North, 118.8° West (view map)
Paleocoordinates:45.4° North, 116.1° West
Basis of coordinate:based on political unit
Time
Period:Neogene
10 m.y. bin:Cenozoic 6
*Period:Tertiary *Epoch:Miocene
Key time interval:Hemphillian
Age range of interval:10.30000 - 4.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:McKay
Lithology and environment
Primary lithology:tuffaceous sandstone
Environment:pond
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:selective quarrying,surface (float)
Collection size:731 specimens
Reason for describing collection:paleoecologic analysis
Museum repositories:SDSM
Collectors:J. A. Shotwell, G. Shotwell Collection dates:1950
Taxonomic list comments:see Martin 1998 for stratigraphic nomenclature
NISP 751: Shotwell 1958a; 20 of these are generically indeterminate, for a total of 731
Metadata
Also known as:SDSM V802; UCMP V-74163; UO 2222; UWBM C0128
Database number:18970
Authorizer:J. Alroy, J. Marcot, J. Orcutt Enterer:J. Alroy, J. Marcot, J. Orcutt
Modifier:J. Orcutt Research group:vertebrate
Created:1993-09-27 00:00:00 Last modified:2023-08-09 17:23:44
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

3109. J. A. Shotwell. 1956. Hemphillian mammalian assemblage from northeastern Oregon. Geological Society America Bulletin 67 [J. Alroy/J. Alroy/J. Ju]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
25093 P. Brodkorb. 1958. Birds from the Middle Pliocene of McKay, Oregon. The Condor 60(4):252-255 [J. Alroy/J. Alroy]
1799 J. A. Harrison. 1981. A review of the extinct wolverine, Plesiogulo (Carnivora: Mustelidae), from North America. Smithsonian Contributions to Paleobiology 46:1-27 [J. Alroy/J. Alroy/J. Alroy]
1989 J. H. Hutchison. 1968. Fossil Talpidae (Insectivora, Mammalia) from the Tertiary of Oregon. Bulletin of the Museum of Natural History, University of Oregon 11:1-117 [J. Alroy/J. Alroy/M. Uhen]
2137 W. W. Korth. 1999. Hesperogaulus, a new genus of mylagaulid rodent (Mammalia) from the Miocene (Barstovian to Hemphillian) of the Great Basin. Journal of Paleontology 73(5):945-951 [J. Alroy/J. Alroy/J. Marcot]
2243 E. H. Lindsay. 1972. Small mammal fossils from the Barstow Formation, California. University of California Publications in Geological Sciences 93:1-104 [J. Alroy/J. Alroy/J. Alroy]
2411 J. E. Martin. 1984. A Survey of Tertiary Species of Perognathus (Perognathinae) and a description of a new genus of Heteromyinae,. In R. M. Mengle (ed.), Carnegie Museum of Natural History Special Publication 9:90-121 [J. Alroy/J. Alroy/M. Uhen]
2415 J. E. Martin. 1998. Two new sciurids, Eutamias malloryi and Parapaenemarmota (Rodentia), from the late Miocene (Hemphillian) of northern Oregon. Thomas Burke Memorial Washington State Museum Research Report 6:31-42 [J. Alroy/J. Alroy]
77044 J.D. Orcutt and J.J.M. Calede. 2021. Quantitative analyses of feliform humeri reveal the existence of a very large cat in North America during the Miocene. Journal of Mammalian Evolution [J. Orcutt/J. Orcutt]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
31105% 43520J. A. Shotwell. 1958. Inter-community relationships in Hemphillian (mid-Pliocene) mammals. Ecology 39(2):271-282 [J. Alroy/J. Alroy/W. Clyde]
3115 J. A. Shotwell. 1967. Peromyscus of the Late Tertiary in Oregon. Bulletin of the Museum of Natural History, University of Oregon 5:1-35 [J. Alroy/J. Alroy/M. Uhen]
3116 J. A. Shotwell. 1967. Late Tertiary Geomyoid Rodents of Oregon. Bulletin of the Museum of Natural History, University of Oregon 9:1-51 [J. Alroy/J. Alroy/M. Uhen]
6332 H. Wagner. 1976. A new species of Pliotaxidea (Mustelidae; Carnivora) from California. Journal of Paleontology 50(1):107-127 [J. Alroy/J. Alroy/J. Alroy]