Cerro Cometa: Late Eocene, Venezuela
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
- Raninidae
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Malacostraca
- Decapoda
- Aethridae
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Eriosachila rathbunae
(Maury 1930)
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| see common names | |||||||
Geography
| Country: | Venezuela | State/province: | Falcon |
| Coordinates: | 11.0° North, 69.8° West (view map) | ||
| Paleocoordinates: | 10.5° North, 58.0° West (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Late Eocene | ||
| Age range of interval: | 37.71 - 33.9 m.y. ago |
Stratigraphy
| Formation: | Santa Rita | ||||
| Stratigraphy comments: Overlying Formations(s): Jarillal Formation. In conjunction with the Jarillal Formation, it is overlain by the Castillo Formation in the North and South, and by the El Paraiso and Pecaya Formations in the central part of the basin. Underlying Formation: It unconformably overlies Matatare Formation. Thickness: 400-500 m. (Guevara, 1967; Macellari 1995; Baquero et al., 2009). |
Lithology and environment
| Primary lithology: | coarse conglomerate |
| Secondary lithology: | very fine sandstone |
| Lithology description: The Santa Rita Formation consists of coarse conglomerate, very fine grained sandstones, and marl with interbedded limestone (Guevara, 1967; Baquero et al., 2009). | |
| Environment: | coastal indet. |
| Geology comments: This formation was deposited in continental to shallow marine environments. There is also mention that part of it could be from an alluvial fan (Baquero et al., 2009). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 228729 | ||
| Authorizer: | J. Wolfe | Enterer: | A. Lynch |
| Created: | 2022-12-29 19:17:36 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2022-12-29 19:17:36 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 83501. | O. Aguilera, D. Rodrigues de Aguilera, F. J. Vega and M. R. Sanchez-Villagra. 2010. Mesozoic and Cenozoic decapod crustaceans from Venezuela and related trace-fossil assemblages. In M. R. Sanchez-Villagra, O. A. Aguilera, A. A. Carlini (eds.), Urumaco and Venezuelan Paleontology: The Fossil Record of the Northern Neotropics 103-129 [J. Wolfe/A. Lynch] |