Krebs Ranch 1: Hemphillian, Oregon
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Rodentia
- Sciuridae
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Eutamias malloryi
Martin 1998
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= Neotamias malloryi
Martin 1998
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Martin 1998 | |||||||||
Arlington 5, 7, 13, 14 DUPLICATE REF 2415 or 6090 | ||||||||||
Citellus shotwelli
Black 1963
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= Spermophilus shotwelli
Black 1963
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Black 1963 | |||||||||
"Arlington beds" (presumably CIT 375); this record or the next one might include "Citellus sp." of Shotwell from UO 2322 | ||||||||||
Citellus wilsoni
Shotwell 1956
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= Spermophilus wilsoni
Shotwell 1956
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Black 1963 | |||||||||
CIT 375 | ||||||||||
Mammalia
- Rodentia
- Heteromyidae
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Perognathus stevei
Martin 1984
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Martin 1984 | |||||||||
UWBM B1532 (Arlington 3), B1533 (Arlington 4), B1534 (Arlington 5), C0120 (Arlington 7), C0125 (Arlington 12), C0126 (Arlington 13), C0127 (Arlington 14), C0141 (Arlington 15) DUPLICATE REF 2411 or 2424 | ||||||||||
Oregonomys pebblespringsensis n. sp.
Martin 1984
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Martin 1984 | |||||||||
UWBM C0127 (Arlington 14); also B1532 (Arlington 3), B1533 (Arlington 4), B1534 (Arlington 5), C0120 (Arlington 7), C0121 (Arlington 8), C0125 (Arlington 12), C0126 (Arlington 13), C0141 (Arlington 15) DUPLICATE REF 2411 or 2424 | ||||||||||
Mammalia
- Rodentia
- Castoridae
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Dipoides sp.
Jaeger 1835
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Mammalia
- Rodentia
- Cricetidae
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Peromyscus sp.
Gloger 1841
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2 specimens | |||||||||
= Cricetidae indet.
Fischer von Waldheim 1817
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Alroy 2002 | |||||||||
Mammalia
- Lagomorpha
- Leporidae
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Hypolagus sp.
Dice 1917
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= Hypolagus oregonensis
Shotwell 1956
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White 1988 | |||||||||
CIT specimen from "Arlington" (presumably CIT 375) | ||||||||||
Mammalia
- Talpidae
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Scapanus proceridens
Hutchison 1968
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Hutchison 1968 | |||||||||
from both UO 2322 and CIT 375 | ||||||||||
Mammalia
- Tayassuidae
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Prosthennops sp.
Matthew and Gidley 1904
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1 specimen | |||||||||
= Tayassuinae indet.
Palmer 1897
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Alroy 2002 | |||||||||
Mammalia
- Carnivora
- Canidae
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Canis sp.
Linnaeus 1758
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2 specimens | |||||||||
= Canini indet.
Fischer de Waldheim 1817
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Alroy 2002 | |||||||||
see common names |
Geography
Country: | United States | State/province: | Oregon | County: | Gilliam |
Coordinates: | 45.7° North, 120.2° West (view map) | ||||
Paleocoordinates: | 45.6° North, 117.5° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | small collection |
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: | Alkali Canyon | ||||
Stratigraphic resolution: | member | ||||
Stratigraphy comments: "relatively thin stratigraphic unit"; see Martin 1998 for stratigraphic nomenclature |
Lithology and environment
Primary lithology: | tuffaceous unlithified sandstone |
Secondary lithology: | tuff |
Lithology description: "unconsolidated sands, tuffaceous sandstone and tuffs" | |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | species names |
Collection methods: | surface (float),field collection |
Collection size: | 86 specimens |
Reason for describing collection: | paleoecologic analysis |
Collection method comments: "collection on hands and knees" from a blowout | |
Taxonomic list comments:CIT 375 is at the junction of four sections, of which one includes UO 2322, so the records are merged a UO specimen of Megalonyx sp. is from one of the Krebs Ranch localities: Hirschfeld and Webb 1968 NISP 86, excluding 5 generically indeterminate records |
Metadata
Also known as: | Arlington 15; UO 2322 | ||
Database number: | 18939 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 1993-09-27 00:00:00 | Last modified: | 2004-03-22 18:56:06 |
Access level: | the public | Released: | 1993-09-27 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
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] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
1082 | 5% 42280 | C. C. Black. 1963. A review of the North American Tertiary Sciuridae. Bulletin of the Museum of Comparative Zoology 130(3):109-248 [J. Alroy/J. Alroy/J. Head] |
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] | |
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] | |
3632 | J. A. White. 1988. The Archaeolaginae (Mammalia, Lagomorpha) of North America, Excluding Archaeolagus and Panolax. Journal of Vertebrate Paleontology 7(4):425-450 [J. Alroy/J. Alroy/J. Ju] |