UCMP Locality V4502: Early/Lower Oligocene, Colombia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Rodentia
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Eosteiromys sp.
Ameghino 1902
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| Maxilla with P4 | ||||||||||
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= Steiromys indet.
Ameghino 1887
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Walton 1997 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Colombia | State/province: | Putumayo |
| Coordinates: | 0.1° North, 74.7° West (view map) | ||
| Paleocoordinates: | 2.0° South, 68.5° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Early/Lower Oligocene | ||
| Age range of interval: | 33.90000 - 27.82000 m.y. ago |
Stratigraphy
| Stratigraphy comments: This collection has been assigned to the ?Early Oligocene by Stirton (1953) but in Perez et al., 2018 they say: other localities (Fig. 1) with caviomorphs tentatively assigned to the Deseadan have been reported at low latitudes: Peneyita and Coyaima in Colombia (Stirton 1953; Hoffstetter 1971). However, the age of these sediments is uncertain. |
Lithology and environment
| Primary lithology: | calcareous claystone |
| Lithology description: Calcareous marly claystone | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | UCMP |
Metadata
| Also known as: | Fauna Peneyita | ||
| Database number: | 145350 | ||
| Authorizer: | C. Jaramillo | Enterer: | M. Vallejo |
| Modifier: | M. Kouvari | Research group: | vertebrate |
| Created: | 2013-06-01 00:52:29 | Last modified: | 2020-11-30 06:06:23 |
| Access level: | group members | Released: | 2015-06-01 00:52:29 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 23960. | fossil record | R. A. Stirton. 1953. Vertebrate paleontology and continental stratigraphy in Colombia. Geological Society of America Bulletin 64:603-622 [J. Alroy/J. Alroy/L. Mora-Rojas] |
Secondary references:
| 46973 | A. H. Walton. 1997. Rodents. In R. F. Kay, R. H. Madden, J. J. Flynn. (eds.), Vertebrate Paleontology in the Neotropics. The Miocene fauna of La Venta, Colombia 392-409 [C. Jaramillo/M. Vallejo/A. Cárdenas] |