Английская Википедия:Charco Azul Formation
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Charco Azul Formation is a geologic formation of the Charco Azul Group in western Panama and southeastern Costa Rica. It preserves gastropod fossils dating back to the Pliocene period.[1]
Description
The Charco Azul Formation comprises tuffaceous shales deposited in a deep marine environment The formation unconformably underlies the Armuelles Formation. The formation is correlated to the Jama and Canoa Formations of Ecuador.[1]
Fossil content
These fossils have been reported from the formation:[1]
- Strombina (Recurvina) penita, Strombina (Recurvina) recurva
- Distorsio decussata
- Marsupina bufo, M. nana
See also
- List of fossiliferous stratigraphic units in Costa Rica
- List of fossiliferous stratigraphic units in Panama
References
Further reading
- P. Jung. 1989. Revision of the Strombina-group (Gastropoda; Columbellidae), fossil and living. Schweierische Paläontologische Abhandlungen 111:1-298
- ↑ 1,0 1,1 1,2 Charco Azul Formation at Fossilworks.org
Категории:
- Английская Википедия
- Geologic formations of Costa Rica
- Neogene Costa Rica
- Geologic formations of Panama
- Neogene Panama
- Shale formations
- Tuff formations
- Deep marine deposits
- Chiriquí Province
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- Википедия
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- Статья из Английской Википедии