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

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

 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
 Rodentia - Cricetidae
"Peromyscus cf. pliocenicus" = Basirepomys pliocenicus11 Wilson 1937 mouse
UO 2222
Copemys esmeraldensis6 Clark et al. 1964 mouse
Prosomys mimus n. sp. Shotwell 1956 mouse
misspelt P. "mimmus" in faunal list
Antecalomys cf. valensis11 Shotwell 1967 mouse
Peromyscus antiquus11 Kellogg 1910 deer mouse
UO 2222
 Rodentia - Aplodontidae
Liodontia sp. Miller and Gidley 1918 mountain beaver
 Rodentia - Sciuridae
Spermophilus mckayensis1 Shotwell 1956 ground squirrel
Spermophilus wilsoni1 Shotwell 1956 ground squirrel
Neotamias sp.8 Howell 1929 chipmunk
Parapaenemarmota oregonensis1 Shotwell 1956 squirrel
 Rodentia - Eomyidae
Leptodontomys oregonensis n. sp. Hibbard 1970 rodent
 Rodentia - Geomyidae
Parapliosaccomys oregonensis12 Shotwell 1967 pocket gopher
 Rodentia - Heteromyidae
Perognathinae indet.7 Coues 1875 rodent
Oregonomys sargenti1 Shotwell 1956 rodent
 Rodentia - Castoridae
Castor sp. Linnaeus 1758 beaver
Dipoides smithi n. sp. Shotwell 1955 beaver
see Shotwell 1955: count excludes miscellaneous postcrania
 Rodentia - Mylagaulidae
Hesperogaulus wilsoni5 Korth 1999 rodent
 Rodentia - Zapodidae
Pliozapus solus Wilson 1936 jumping mouse
 Lagomorpha - Leporidae
Hypolagus oregonensis n. sp. Shotwell 1956 rabbit
 Lagomorpha - Ochotonidae
Ochotona spanglei n. sp. Shotwell 1956 pika
misspelt "spangelei" in faunal list and abstract
 Lipotyphla - Talpidae
Scapanus sp. Pomel 1848 mole
Scapanus cf. proceridens4 Hutchison 1968 mole
Gaillardia thomsoni1 Matthew 1932 mole
? Scalopoides sp.4 Wilson 1960 mole
forms "D" and "E"
? Neurotrichus columbianus4 Hutchison 1968 shrew mole
 Perissodactyla - Rhinocerotidae
Teleoceras hicksi9 Cook 1927 rhinoceros
 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
 Chiroptera -
Chiroptera indet. Blumenbach 1779 bat
a bat
 Carnivora - Mustelidae
Mustela sp.10 Linnaeus 1758 weasel
Plesiogulo marshalli3 Martin 1928 mustelid carnivore
Pliotaxidea nevadensis13 Butterworth 1916 badger
 Carnivora - Canidae
Eucyon davisi1 Merriam 1911 canine
Epicyon saevus1 Leidy 1858 bone-crushing dog
 Carnivora - Felidae
Machairodus sp. Kaup 1833 cat
Lynx longignathus1 Shotwell 1956 lynx
 Proboscidea - Mammutidae
? Mammutidae indet. Hay 1922 mastodon
 Artiodactyla - Tayassuidae
Platygonus brachirostris1 Shotwell 1956 peccary
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
"Procamelus or Pliauchenia" and "Paracamelus" (Megatylopus or Aepycamelus)