Black Butte (UO 2448): Clarendonian, Oregon
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Proboscidea
- Mammutidae
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Mammut (Pliomastodon) furlongi
Shotwell and Russell 1963
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Mammalia
- Perissodactyla
- Equidae
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Hipparion condoni
Merriam 1915
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= Hippotherium sp.
Kaup 1832
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Alroy 2002 | ||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Aphelops sp.
Owen 1845
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= Aphelops megalodus
Cope 1873
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Prothero 2005 | ||||||
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Mammalia
- Camelidae
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Procamelus cf. grandis
Gregory 1939
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Megatylopus cf. gigas
(Matthew and Cook 1909)
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= Megatylopus sp.
Matthew and Cook 1909
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Shotwell 1970 | ||||||
| original and current combination Pliauchenia (Megatylopus) | |||||||
| 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: | 220 specimens |
| Reason for describing collection: | general faunal/floral analysis |
| Taxonomic list comments:NISP 220 | |
Metadata
| Also known as: | Quarry 3 | ||
| Database number: | 18830 | ||
| 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 08:42:01 |
| 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] | |
| 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] |