Black Butte (UO 2332): Clarendonian, Oregon

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Rodentia - Castoridae
? Hystricops sp. (Leidy 1858)
original and current combination Hystrix (Hystricops)
Mammalia - Carnivora - Canidae
Aelurodon sp. Leidy 1858
2 specimens
    = Borophaginae indet. Simpson 1945
Alroy 2002
    = Epicyon haydeni Leidy 1858
Orcutt and Hopkins 2011
UOMNH F-5607
Mammalia - Perissodactyla - Equidae
Hipparion condoni Merriam 1915
    = Hippotherium sp. Kaup 1832
Alroy 2002
Mammalia - Perissodactyla - Rhinocerotidae
Aphelops sp. Owen 1845
Shotwell 1970
    = Aphelops megalodus Cope 1873
Prothero 2005
Mammalia - Camelidae
Procamelus cf. grandis Gregory 1939
see common names

Geography
Country:United States State/province:Oregon County:Malheur
Coordinates: 43.6° North, 117.5° West (view map)
Paleocoordinates:44.2° North, 115.0° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5-6
*Period:Tertiary
Key time interval:Clarendonian
Age range of interval:12.50000 - 9.40000 m.y. ago
Age estimate:12.5 to 9.5 Ma (unknown)
* legacy (obsolete) database fields
Stratigraphy
Formation:Juntura
Local section:MlhrN Local bed:2
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: "The Juntura Formation outcrops in the basin and around the town of the same name in southeastern Oregon. The Buck Mountain Basalts from the lower part of the formation have been dated to 12.5 Ma (late Barstovian–early Clarendonian; Camp et al., 2003), and the formation is overlain unconformably by the 9.5 Ma Devine Canyon Ashflow Tuff (late Clarendonian; Hooper et al., 2002). The fossiliferous units of the Juntura Formation (the Juntura fauna of Russell, 1956, equivalent to the Black Butte local fauna of Shotwell, 1963) are from its uppermost part and are composed primarily of light-colored volcaniclastic sediments (Bowen et al., 1963). Based on taxonomic composition, Shotwell and Russell (1963) assigned the fauna to the late Clarendonian (10–9 Ma; Tedford et al., 2004)." (Orcutt & Hopkins 2011)
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection size:55 specimens
Reason for describing collection:general faunal/floral analysis
Taxonomic list comments:NISP 55, excluding generically indeterminate specimens
Metadata
Also known as:Quarry 2, Kingsbury Gulch
Database number:18816
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:B. Allen Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2023-07-29 08:30:30
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

3119. J. A. Shotwell and D. E. Russell. 1963. Mammalian fauna of the Upper Juntura formation, the Black Butte local fauna. Transactions of the American Philosophical Society 53(1):42-69 [J. Alroy/J. Alroy/R. Hulbert]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
57275 J. D. Orcutt and S. S. B. Hopkins. 2011. The Canid Fauna of the Juntura Formation (Late Clarendonian), Oregon. Journal of Vertebrate Paleontology 31(3):700-706 [J. Marcot/J. Marcot]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
3118 J. A. Shotwell. 1970. Pliocene mammals of southeast Oregon and adjacent Idaho. Bulletin of the Museum of Natural History, University of Oregon 17:1-103 [J. Alroy/J. Alroy/J. Marcot]