Bridwell Formation: Hemphillian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Rodentia
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Rodentia indet.
Bowdich 1821
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Mammalia
- Lagomorpha
- Leporidae
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Hypolagus sp.
Dice 1917
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= Archaeolaginae indet.
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Alroy 2002 | ||||||
Mammalia
- Perissodactyla
- Rhinocerotidae
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Aphelops sp.
Owen 1845
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Mammalia
- Perissodactyla
- Equidae
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Nannippus cf. minor
(Sellards 1916)
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= Nannippus cf. aztecus
Mooser 1968
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Alroy 2002 | ||||||
Cormohipparion occidentale
(Leidy 1856)
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= Hippotherium sp.
Kaup 1832
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Alroy 2002 | ||||||
Neohipparion eurystyle
(Cope 1893)
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Dinohippus interpolatus
(Cope 1893)
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Astrohippus ansae
(Matthew and Stirton 1930)
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Mammalia
- Tayassuidae
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Prosthennops sp.
Matthew and Gidley 1904
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= Tayassuinae indet.
Palmer 1897
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Alroy 2002 | ||||||
Mammalia
- Camelidae
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Alforjas taylori
Harrison 1979
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Megatylopus matthewi
Webb 1965
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? Hemiauchenia sp.
Gervais and Ameghino 1880
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Hemiauchenia vera
(Matthew 1909)
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recombined as Pleiolama vera | |||||||
Mammalia
- Antilocapridae
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cf. Texoceros sp.
Frick 1937
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Mammalia
- Carnivora
- Felidae
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Machairodus cf. coloradensis
Cook 1922
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recombined as Amphimachairodus coloradensis | |||||||
Mammalia
- Carnivora
- Canidae
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Osteoborus sp.
Stirton and VanderHoof 1933
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= Borophagus sp.
Cope 1892
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Alroy 2002 | ||||||
Mammalia
- Proboscidea
- Gomphotheriidae
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Gomphotheriidae indet.
Hay 1922
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see common names |
Geography
Country: | United States | State/province: | Texas | County: | Crosby and Lubbock |
Coordinates: | 33.7° North, 101.5° West (view map) | ||||
Paleocoordinates: | 34.0° North, 99.8° West | ||||
Basis of coordinate: | based on political unit |
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
Local section: | Bridw | Local bed: | 2 |
Local order: | bottom to top | ||
Stratigraphic resolution: | formation |
Lithology and environment
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Taxonomic list comments:upper and middle levels of formation only - does not include lowest level (see Janes Quarry) technically includes Smart Ranch (see), but the collections appear to be independent of each other |
Metadata
Database number: | 18073 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 1992-08-05 00:00:00 | Last modified: | 2009-12-20 13:23:02 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
3715. | D. A. Winkler. 1990. Sedimentary Facies and Biochronology of the Upper Tertiary Ogallala Group, Blanco and Yellow House Canyons, Texas Panhandle. In T. C. Gustavson (ed.), Geologic Framework and Regional Hydrology: Upper Cenozoic Blackwater Draw and Ogallala Formations, Great Plains 39-55 [J. Alroy/J. Alroy/J. Marcot] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] |