Alvord Mountain (USGS D301): Barstovian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Carnivora
- Mustelidae
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Brachypsalis cf. pachycephalus
Cope 1890
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Mammalia
- Perissodactyla
- Equidae
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Merychippus stylodontus
(Merriam 1919)
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= Acritohippus cf. stylodontus
Merriam 1919
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Lewis 1968 | |||||||||
| original and current combination Merychippus calamarius stylodontus | ||||||||||
| "M. sp." | ||||||||||
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Mammalia
- Camelidae
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Hesperocamelus sp.
Macdonald 1949
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= Protolabis barstowensis n. sp.
Lewis 1968
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Lewis 1968 | |||||||||
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Mammalia
- Antilocapridae
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Merycodus sp.
Leidy 1854
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| presumably sensu Frick, but omitted by Woodburne 1991b, who does mention Merycodus from "other" localities in the Middle Mbr. | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | San Bernardino |
| Coordinates: | 34.8° North, 117.0° West (view map) | ||||
| Paleocoordinates: | 34.1° North, 112.3° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| *Period: | Tertiary | ||
| Key time interval: | Barstovian | ||
| Age range of interval: | 16.30000 - 12.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Museum repositories: | USGS |
| Taxonomic list comments:see also Woodburne et al. 1982 tuffs close to this level have been dated at 13.8 and 14.0 Ma (K-Ar); redated at 14.4 +/- 0.03 Ma (AA on plagioclase and biotite) by Woodburne 1991b | |
Metadata
| Database number: | 19133 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 2000-05-19 00:00:00 | Last modified: | 2006-09-13 01:08:17 |
| Access level: | the public | Released: | 2000-05-19 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 1170. | F. M. Byers, Jr. 1960. Geology of the Alvord Mountain quadrangle, San Bernardino County, California. United States Geological Survey Bulletin 1089-A:1-71 [J. Alroy/J. Alroy/J. Ju] |
Secondary references:
| 2224 | G. E. Lewis. 1968. Stratigraphic Paleontology of the Barstow Formation in the Alvord Mountain Area, San Bernardino County, California. United States Geological Survey Professional Paper 600-C:75-79 [J. Alroy/J. Alroy/J. Marcot] |