Junction: Miocene, Colorado
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Erinaceidae
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Metechinus amplior
Rich 1981
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Mammalia
- Lagomorpha
- Ochotonidae
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Hesperolagomys sp.
Clark et al. 1964
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Grand |
| Coordinates: | 40.2° North, 106.1° West (view map) | ||||
| Paleocoordinates: | 40.8° North, 103.2° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5-6 | ||
| *Period: | Tertiary | ||
| Key time interval: | Miocene | ||
| Age range of interval: | 23.03 - 5.333 m.y. ago | ||
| Age estimate: | 23.5 to 11.0 Ma (Ar/Ar) | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Troublesome | Member: | upper | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Troublesome Formation is 23.5 to 11Ma according to dated tuffs at top and bottom (Izett & Obradovich 2001) | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 18934 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | B. Allen | Research group: | vertebrate |
| Created: | 1994-07-26 00:00:00 | Last modified: | 2023-07-29 04:33:02 |
| Access level: | the public | Released: | 1994-07-26 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 2897. | T. H. V. Rich. 1981. Origin and History of the Erinaceinae and Brachyericinae (Mammalia, Insectivora) in North America. Bulletin of the American Museum of Natural History 171(1):1-116 [J. Alroy/J. Alroy/P. Mannion] |