DV 831 [Otuma Fm]: Rupelian, Peru
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pholadida
- Corbulidae
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Corbula paracasensis
Rivera 1957
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Bivalvia
- Carditida
- Carditidae
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Cardita newelli
Rivera 1957
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Gastropoda
- Turritellidae
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Turritella woodsi
Lisson 1925
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| see common names | |||||||
Geography
| Country: | Peru | County: | Pisco |
| Coordinates: | 13.9° South, 76.3° West (view map) | ||
| Paleocoordinates: | 16.0° South, 69.6° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Rupelian | ||
| Age range of interval: | 33.9 - 27.82 m.y. ago |
Stratigraphy
| Formation: | Otuma | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Faulted sandstone beds rest unconformably upon the middle Eocene siltstones. The section consists of three medium beds of indurated bioclastic sandstone near the base seperated by medium-grained sandstone with fossiliferous concretions. The total section may measure about 10 m. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal lithified sandstone |
| Secondary lithology: | medium,concretionary sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Indurated bioclastic sandstone near the base seperated by medium-grained sandstone with fossiliferous concretions. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,original aragonite,original calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some microfossils |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Identifications made by T.J. DeVires. Unknown repository. | |
| Taxonomic list comments:Probably not complete for locality. Only common and biostratigraphically important taxa listed. | |
Metadata
| Also known as: | Museo | ||
| Database number: | 41622 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2004-07-18 22:25:39 | Last modified: | 2019-11-05 18:09:36 |
| Access level: | the public | Released: | 2004-07-18 22:25:39 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 11150. | T. J. DeVries. 1998. Oligocene deposition and Cenozoic sequence boundaries in the Pisco Basin (Peru). Journal of South American Earth Sciences 11(3):217-231 [A. Miller/A. Hendy/M. Uhen] |