Big Red Horizon (TMM 40202): Duchesnean, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Rodentia
- Ischyromyidae
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Ischyrotomus petersoni
(Matthew 1910)
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= Pseudotomus cf. petersoni
Matthew 1910
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Alroy 2002 | |||||||||
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Mammalia
- Protoceratidae
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Heteromeryx dispar
Matthew 1905
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Wilson 1974 | |||||||||
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Mammalia
- Perissodactyla
- Equidae
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Mesohippus texanus
McGrew 1971
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McGrew 1971 | |||||||||
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Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon primus
Peterson 1934
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Wilson and Schiebout 1984 | 1 specimen | ||||||||
| (1 measurement) | ||||||||||
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= Hyracodon medius
Peterson 1934
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Alroy 2002 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Texas | County: | Presidio |
| Coordinates: | 29.9° North, 104.2° West (view map) | ||||
| Paleocoordinates: | 31.6° North, 95.9° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 3 | ||
| *Period: | Tertiary | ||
| Key time interval: | Duchesnean | ||
| Age range of interval: | 39.70000 - 37.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Chambers Tuff | ||
| Local section: | Vieja | Local bed: | 4 |
| Local order: | bottom to top |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection excludes: | some genera |
| Museum repositories: | TMM |
| Taxonomic list comments:definitely in the Chambers Tuff and presumed to be from the Big Red Horizon because I. cf. petersoni appears in list of Wilson 1977b for this interval | |
Metadata
| Database number: | 16829 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 1994-07-26 00:00:00 | Last modified: | 2002-06-03 03:27:41 |
| Access level: | the public | Released: | 1994-07-26 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3735. | A. E. Wood. 1974. Early Tertiary vertebrate faunas, Vieja Group Trans-Pecos Texas: Rodentia. Texas Memorial Museum Bulletin 21:1-112 [J. Alroy/J. Alroy/M. Uhen] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 2524 | P. O. McGrew. 1971. Epihippus from the Vieja Group, Trans-Pecos Texas. Pearce-Sellards Series 18 [J. Alroy/J. Alroy/J. Ju] | |
| 3663 | J. A. Wilson. 1974. Early Tertiary Vertebrate Faunas, Vieja Group and Buck Hill Group, Trans-Pecos Texas: Protoceratidae, Camelidae, Hypertragulidae. Bulletin of the Texas Memorial Museum 23:1-24 [J. Alroy/J. Alroy/J. Marcot] | |
| 3670 | J. A. Wilson and J. A. Schiebout. 1984. Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Ceratomorpha less Amynodontidae. Pearce-Sellards Series 39:1-47 [J. Alroy/J. Alroy/J. Marcot] |