Contamana, CTA 17: Albian - Cenomanian, Peru
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Alatisporites limai
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6 specimens | ||||||
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Sofreipites legouxae
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18 specimens | ||||||
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Cycadopsida
- Gnetales
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Elaterosporites klaszi
Jardiné 1967
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31 specimens | ||||||
| see common names | |||||||
Geography
| Country: | Peru | State/province: | Loreto |
| Coordinates: | 7.2° South, 75.0° West (view map) | ||
| Paleocoordinates: | 13.9° South, 48.4° West | ||
| Basis of coordinate: | unpublished field data |
Time
| Period: | Cretaceous |
| Key time interval: | Albian - Cenomanian |
| Age range of interval: | 113.00000 - 93.90000 m.y. ago |
Lithology and environment
| Primary lithology: | planar lamination lithified argillaceous,carbonaceous sandstone |
| Secondary lithology: | black lithified argillaceous "shale" |
| Lithology description: The Raya Formation is interpreted to have been deposited in delta plain-shallow marine-estuarine environments and consists of organic-rich massive to thin-bedded sandstones intercalated with black shales (Kummel, 1948). | |
| Environment: | delta plain |
Taphonomy
| Modes of preservation: | soft parts,original sporopollenin |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection excludes: | all microfossils |
| Collection methods: | chemical,hydrochloric,hydroflouric,sieve |
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 144304 | ||
| Authorizer: | C. Jaramillo | Enterer: | G. Doria |
| Created: | 2013-05-03 09:16:22 | Last modified: | 2013-05-02 18:16:22 |
| Access level: | group members | Released: | 2014-05-03 09:16:22 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 46654. | P. Mejia-Velazquez, S. R. Manchester, and C. Jaramillo. 2012. Floristic reconstruction of two Lower Cretaceous sections from Peru during the period of early angiosperm diversification and their climatic implications. 13th International Palynological Congress and 9th International Organization of Palaeobotany Conference GS02-GS006 [C. Jaramillo/G. Doria/A. Cárdenas] |