PBDB Collection

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

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Reptilia - Anseriformes - Anatidae

	Nettion bunkeri Wetmore 1944	Brodkorb 1958
Reptilia - Odontophoridae

	Lophortyx shotwelli n. sp. Brodkorb 1958	Brodkorb 1958
Reptilia - Charadriiformes - Scolopacidae

	Bartramia umatilla n. sp. Brodkorb 1958	Brodkorb 1958
Mammalia - Chiroptera

	Chiroptera indet. Blumenbach 1779		2 specimens
	a bat
Mammalia - Proboscidea - Mammutidae

	? Mammutidae indet. Hay 1922		1 specimen
Mammalia - Carnivora - Mustelidae

	Mustela sp. Linnaeus 1758	Shotwell 1958	1 specimen

	Plesiogulo sp. Zdansky 1934		2 specimens
	= Plesiogulo marshalli Martin 1928	Harrison 1981

	Pliotaxidea sp. Hall 1944		1 specimen
	= Pliotaxidea nevadensis Butterworth 1916	Wagner 1976
Mammalia - Carnivora - Canidae

	Osteoborus sp. Stirton and VanderHoof 1933		9 specimens
	= Epicyon saevus Leidy 1858	Alroy 2002
	comparisons are to "O. diabolensis" and "O. littoralis"

	Canis condoni n. sp. Shotwell 1956		47 specimens
	= Eucyon davisi Merriam 1911	Alroy 2002
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 - 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 - Perissodactyla - Rhinocerotidae

	Teleoceras sp. Hatcher 1894		120 specimens
	= Teleoceras hicksi Cook 1927	Prothero 2005
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 - 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)

	Scapanus cf. proceridens Hutchison 1968	Hutchison 1968

	? Scalopoides sp. Wilson 1960	Hutchison 1968
	forms "D" and "E"
Mammalia - Lagomorpha - Ochotonidae

	Ochotona spanglei n. sp. Shotwell 1956		26 specimens
	misspelt "spangelei" in faunal list and abstract
Mammalia - Lagomorpha - Leporidae

	Hypolagus oregonensis n. sp. Shotwell 1956		246 specimens
	(1 measurement)
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 antiquus Kellogg 1910	Shotwell 1967
	UO 2222

	Prosomys mimus n. sp. Shotwell 1956		4 specimens
	misspelt P. "mimmus" in faunal list (1 measurement)

	Peromyscus valensis Shotwell 1967
	(1 measurement)
	= Antecalomys cf. valensis Shotwell 1967	Shotwell 1967
	recombined as Postcopemys valensis
	UO 2222

	Peromyscus cf. pliocenicus Wilson 1937	Shotwell 1967
	recombined as Basirepomys pliocenicus
	UO 2222

	Peromyscus cf. esmeraldensis (Clark et al. 1964)
	(1 measurement)
	= Copemys esmeraldensis Clark et al. 1964	Lindsay 1972
Mammalia - Rodentia - Aplodontidae

	Liodontia sp. Miller and Gidley 1918		1 specimen
Mammalia - Rodentia - Sciuridae

	Marmota oregonensis Shotwell 1956		4 specimens
	(1 measurement)
	= Parapaenemarmota oregonensis Shotwell 1956	Alroy 2002

	Citellus mckayensis n. sp. Shotwell 1956		1 specimen
	= Spermophilus mckayensis Shotwell 1956	Alroy 2002

	Citellus wilsoni n. sp. Shotwell 1956		41 specimens
	= Spermophilus wilsoni Shotwell 1956	Alroy 2002

	Eutamias sp. Trouessart 1880
	= Neotamias sp. Howell 1929	Martin 1998
	DUPLICATE REF 2415 or 6090
Mammalia - Rodentia - Castoridae

	Dipoides smithi n. sp. Shotwell 1955		66 specimens
	see Shotwell 1955: count excludes miscellaneous postcrania

	Castor sp. Linnaeus 1758		1 specimen
Mammalia - Rodentia - Geomyidae

	Pliosaccomys dubius Wilson 1936		7 specimens
	= Parapliosaccomys oregonensis Shotwell 1967	Shotwell 1967
Mammalia - Rodentia - Heteromyidae

	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

	Perognathus sp. Maximillian 1839
	= Perognathinae indet. Coues 1875	Martin 1984
	UWBM C0128; definitely not Oregonomys DUPLICATE REF 2411 or 2424
Mammalia - Rodentia - Eomyidae

	Leptodontomys oregonensis n. sp. Hibbard 1970		1 specimen
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:	9.40000 - 4.70000 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]
3110	5% 43520	J. 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]