Bandurrias River, Calafate - Lower Centinela Formation: Lutetian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopea sp.
(Menard 1807)
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| see common names | |||||||
Geography
| Country: | Argentina |
| Coordinates: | 50.5° South, 72.3° West (view map) |
| Paleocoordinates: | 53.0° South, 62.5° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Lutetian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Lutetian | ||
| Age range of interval: | 47.80000 - 41.20000 m.y. ago |
Stratigraphy
| Formation: | Centinela | Member: | Lower | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: From succesion of siltstones, tuff and fine-grained sandstones in the lower part of the Centinela Formation, immediately overlying a prominent ash bed, dated at 46 Ma. Collection from approximately 40-150 m in the stratigraphic column of Casadio et al. (2000). | |||||
Lithology and environment
| Primary lithology: | tuffaceous poorly lithified siltstone |
| Secondary lithology: | fine,tuffaceous sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Siltstones, tuff and fine-grained sandstones | |
| Environment: | coastal indet. |
| Glacial or sequence phase: | transgressive |
| Geology comments: The entire section comprises coastal marine and fluvial facies prograding over subtidal deposits. The lower part represents subtidal environments. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | observed (not collected) |
| Reason for describing collection: | general faunal/floral analysis |
| Collection method comments: Mentioned in section description, not apparent these were collected. | |
| Taxonomic list comments:Only includes a single taxon, arthroppods are mentioned as present but not listed. | |
Metadata
| Database number: | 43005 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-08-08 10:38:24 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-08-08 10:38:24 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11392. | S. Casadio, R. M. Feldmann, and K.A. Foland. 2000. 40Ar/39Ar age and oxygen isotope temperature of the Centinela Formation, southwestern Argentina: An Eocene age for crustacean-rich "Patagonian" beds. Journal of South American Earth Sciences 13:123-132 [A. Miller/A. Hendy/A. Hendy] |