JDNM 267 Hawk Rim Main locality: Hemingfordian, Oregon
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Rodentia
- Sciuridae
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Protospermophilus sp.
Gazin 1930
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Mammalia
- Rodentia
- Castoridae
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Anchitheriomys sp.
Roger 1885
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Monosaulax sp.
Stirton 1935
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Mammalia
- Carnivora
- Amphicyonidae
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Amphicyon cf. frendens
Matthew 1924
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Mammalia
- Carnivora
- Mustelidae
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Watay tabutsigwii n. gen., n. sp.
McLaughlin et al. 2016
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Mammalia
- Perissodactyla
- Chalicotheriidae
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cf. Moropus sp.
Marsh 1877
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Rhinocerotidae indet.
Gray 1821
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Mammalia
- Perissodactyla
- Equidae
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Merychippus sp.
Leidy 1856
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Desmatippus sp.
Scott 1893
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Archaeohippus sp.
Gidley 1906
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Mammalia
- Palaeomerycidae
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Dromomeryx sp.
Douglass 1909
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Rakomeryx sinclairi
(Matthew 1918)
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Mammalia
- Camelidae
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Camelidae indet.
Gray 1821
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Geography
| Country: | United States | State/province: | Oregon | County: | Crook |
| Coordinates: | 44.0° North, 120.1° West (view map) | ||||
| Paleocoordinates: | 43.8° North, 114.1° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Hemingfordian | Mammal zone: | late Hemingfordian |
| Age range of interval: | 18.5 - 16.3 m.y. ago | ||
| Age estimate: | 16.44 ± 0.05 to 16.260 ± 0.016 Ma (U/Pb) |
Stratigraphy
| Formation: | Mascall |
Lithology and environment
| Primary lithology: | lithified muddy,silty sandstone |
| Lithology description: Mascall Formation sediments are composed of primarily fluvial and lacustrine deposits, generally of a uniform tan to light yellow color. In the Crooked River Basin, the Mascall has significantly more fluvial sequences than even the lowermost portion of the type area (Bestland, 1998), with thick cross-bedded sandstones and pebble conglomerates common | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body,permineralized |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all macrofossils |
| Collection methods: | surface (float),surface (in situ),field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 212622 | ||
| Authorizer: | N. Famoso | Enterer: | N. Famoso |
| Modifier: | N. Famoso | Research group: | vertebrate |
| Created: | 2020-08-17 17:12:26 | Last modified: | 2020-08-17 22:53:45 |
| Access level: | the public | Released: | 2020-08-17 17:12:26 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 73434. | W. N. F. McLaughlin, S. S. B. Hopkins, and M. D. Schmitz. 2016. A new late Hemingfordian vertebrate fauna from Hawk Rim, Oregon, with implications for biostratigraphy and geochronology. Journal of Vertebrate Paleontology e1201095 :1-21 [N. Famoso/N. Famoso/N. Famoso] |