McKay Reservoir (Neogene of the United States)

Also known as SDSM V802; UCMP V-74163; UO 2222; UWBM C0128

Where: Umatilla County, Oregon (45.5° N, 118.8° W: paleocoordinates 45.4° N, 116.1° W)

• coordinate based on political unit

When: McKay Formation, Hemphillian (10.3 - 4.9 Ma)

Environment/lithology: pond; tuffaceous sandstone

Size classes: macrofossils, mesofossils

Collected by J. A. Shotwell, G. Shotwell in 1950; reposited in the SDSM

Collection methods: quarrying, surface (float)

Primary reference: J. A. Shotwell. 1956. Hemphillian mammalian assemblage from northeastern Oregon. Geological Society America Bulletin 67 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 18970: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Jonathan Marcot and John Orcutt

Creative Commons license: CC BY (attribution)

Taxonomic list

• see Martin 1998 for stratigraphic nomenclature

•NISP 751: Shotwell 1958a; 20 of these are generically indeterminate, for a total of 731

Mammalia
 Proboscidea - Mammutidae
? Mammutidae indet. Hay 1922 mastodon
 Chiroptera -
Chiroptera indet. Blumenbach 1779 bat
a bat
 Perissodactyla - Equidae
Hipparionini indet. Quinn 1955 hipparionine horse
"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
 Perissodactyla - Rhinocerotidae
Teleoceras hicksi10 Cook 1927 rhinoceros
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
"Procamelus or Pliauchenia" and "Paracamelus" (Megatylopus or Aepycamelus)
 Artiodactyla - Tayassuidae
Platygonus brachirostris1 Shotwell 1956 peccary
 Carnivora - Felidae
Lynx longignathus1 Shotwell 1956 lynx
Machairodus lahayishupup9 Orcutt and Calede 2021 cat
 Carnivora - Mustelidae
Mustela sp.11 Linnaeus 1758 weasel
Plesiogulo marshalli3 Martin 1928 mustelid carnivore
Pliotaxidea nevadensis14 Butterworth 1916 badger
 Carnivora - Canidae
Eucyon davisi1 Merriam 1911 canine
Epicyon saevus1 Leidy 1858 bone-crushing dog
 Theriamorpha - Talpidae
? Scalopoides sp.4 Wilson 1960 mole
forms "D" and "E"
"? Neurotrichus columbianus" = Yanshuella columbiana4 Hutchison 1968 mole
Scapanus cf. proceridens4 Hutchison 1968 mole
Gaillardia thomsoni1 Matthew 1932 mole
 Lagomorpha - Ochotonidae
Ochotona spanglei n. sp. Shotwell 1956 pika
misspelt "spangelei" in faunal list and abstract
 Lagomorpha - Leporidae
Hypolagus oregonensis n. sp. Shotwell 1956 rabbit
 Rodentia - Mylagaulidae
Hesperogaulus wilsoni5 Korth 1999 rodent
 Rodentia - Aplodontidae
Liodontia sp. Miller and Gidley 1918 mountain beaver
 Rodentia - Sciuridae
Parapaenemarmota oregonensis1 Shotwell 1956 squirrel
Neotamias sp.8 Howell 1929 chipmunk
Spermophilus mckayensis1 Shotwell 1956 ground squirrel
Spermophilus wilsoni1 Shotwell 1956 ground squirrel
 Rodentia - Eomyidae
Leptodontomys oregonensis n. sp. Hibbard 1970 rodent
 Rodentia - Heteromyidae
Oregonomys sargenti1 Shotwell 1956 rodent
Perognathinae indet.7 Coues 1875 rodent
 Rodentia - Geomyidae
Parapliosaccomys oregonensis13 Shotwell 1967 pocket gopher
 Rodentia - Castoridae
Dipoides smithi n. sp. Shotwell 1955 beaver
see Shotwell 1955: count excludes miscellaneous postcrania
Castor sp. Linnaeus 1758 beaver
 Rodentia - Zapodidae
Pliozapus solus Wilson 1936 jumping mouse
 Rodentia - Cricetidae
Copemys esmeraldensis6, Peromyscus antiquus12, "Antecalomys cf. valensis" = Postcopemys valensis12, "Peromyscus cf. pliocenicus" = Basirepomys pliocenicus12, Prosomys mimus n. sp.
Copemys esmeraldensis6 Clark et al. 1964 mouse
Peromyscus antiquus12 Kellogg 1910 deer mouse
UO 2222
"Antecalomys cf. valensis" = Postcopemys valensis12 Shotwell 1967 mouse
"Peromyscus cf. pliocenicus" = Basirepomys pliocenicus12 Wilson 1937 mouse
UO 2222
Prosomys mimus n. sp. Shotwell 1956 mouse
misspelt P. "mimmus" in faunal list
Aves
 Charadriiformes - Scolopacidae
Bartramia umatilla n. sp.2 Brodkorb 1958 snipe
 Galliformes - Odontophoridae
Lophortyx shotwelli n. sp.2 Brodkorb 1958 crested quail
 Anseriformes - Anatidae
Nettion bunkeri2 Wetmore 1944 duck