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
•NISP 751: Shotwell 1958a; 20 of these are generically indeterminate, for a total of 731
Mammalia | |
Liodontia sp. Miller and Gidley 1918 mountain beaver | |
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Leptodontomys oregonensis n. sp.
Leptodontomys oregonensis n. sp. Hibbard 1970 rodent | |
Castor sp., Dipoides smithi n. sp.
Castor sp. Linnaeus 1758 beaver
Dipoides smithi n. sp. Shotwell 1955 beaver see Shotwell 1955: count excludes miscellaneous postcrania
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Pliozapus solus Wilson 1936 jumping mouse | |
"Antecalomys cf. valensis" = Postcopemys valensis12, Peromyscus antiquus12, Copemys esmeraldensis6, Prosomys mimus n. sp., "Peromyscus cf. pliocenicus" = Basirepomys pliocenicus12
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Hypolagus oregonensis n. sp.
Hypolagus oregonensis n. sp. Shotwell 1956 rabbit | |
Ochotona spanglei n. sp.
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Gaillardia thomsoni1, "? Neurotrichus columbianus" = Yanshuella columbiana4, ? Scalopoides sp.4, Scapanus cf. proceridens4
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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
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Camelidae indet. Gray 1821 camel "Procamelus or Pliauchenia" and "Paracamelus" (Megatylopus or Aepycamelus)
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? Mammutidae indet. Hay 1922 mastodon | |
Aves | |
Bartramia umatilla n. sp.2
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Lophortyx shotwelli n. sp.2
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