Letrero Formation
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Letrero Formation | |
---|---|
Stratigraphic range: Late Miocene (Mayoan-Montehermosan) ~ | |
Type | Geological formation |
Lithology | |
Primary | Siltstone |
Other | Sandstone |
Location | |
Coordinates | 3°18′S 79°06′W / 3.3°S 79.1°W |
Approximate paleocoordinates | 3°42′S 77°24′W / 3.7°S 77.4°W |
Region | Azuay Province |
Country | Ecuador |
Extent | Sierra Region |
The Letrero Formation is a Late Miocene (Mayoan to Montehermosan in the SALMA classification) geologic formation in south-central Ecuador. The formation comprises lacustrine sediments with strong fluvial clastic input and contains siltstones and fine-grained sandstones.[1]
Fossil content
The formation has provided fossils of:
See also
References
- ^ RHM Locality 4 at Fossilworks.org
- ^ Carlini et al., 2014
Bibliography
- Carlini, Alfredo A.; Mariela C. Castro; Richard H. Madden, and Gustavo J. Scillato Yané. 2013. A new species of Dasypodidae (Xenarthra: Cingulata) from the late Miocene of northwestern South America: implications in the Dasypodini phylogeny and diversity. Historical Biology: An International Journal of Paleobiology 26(6). 728–736. Accessed 2019-02-09.
Categories:
- Pages using gadget WikiMiniAtlas
- Coordinates on Wikidata
- Geologic formations of Ecuador
- Miocene Series of South America
- Neogene Ecuador
- Messinian
- Tortonian
- Chasicoan
- Mayoan
- Montehermosan
- Siltstone formations
- Sandstone formations
- Lacustrine deposits
- Fluvial deposits
- Paleontology in Ecuador
- Geography of Azuay Province