Chota Formation
Appearance
Chota Formation | |
---|---|
Stratigraphic range: Early Campanian-Late Eocene ~ | |
Type | Geological formation |
Sub-units | Esperanza Mb. Rentema Mb. Fundo El Triunfo Mb. |
Underlies | Cajaruro Formation |
Overlies | Celendín Formation |
Thickness | 320 m (1,050 ft) |
Lithology | |
Primary | Shale, sandstone |
Other | Gypsum |
Location | |
Coordinates | 5°41′41″S 78°30′41″W / 5.69472°S 78.51139°W |
Approximate paleocoordinates | 7°30′S 60°36′W / 7.5°S 60.6°W |
Region | Cajamarca |
Country | Peru |
Extent | Bagua Basin |
Type section | |
Named for | Chota |
Named by | Broggi |
Location | Esperanza, Cajamarca |
Year defined | 1942 |
The Chota Formation is an Early Campanian to Late Eocene geologic formation of the Cajamarca and western Amazonas Region in northern Peru. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus ("Baguasaurus").[1] The formation was formerly named Bagua Formation.[2]
See also
References
Bibliography
Further reading
- Template:Cite LSA
- Template:Cite LSA
- T. Mourier, P. Bengtson, M. Bonhomme, E. Buge, H. Cappetta, J.-Y. Crochet, M. Feist, K. F. Hirsch, E. Jaillard, G. Laubacher, J. P. Lefranc, M. Moullade, C. Noblet, D. Pons, J. Rey, B. Sigé, Y. Tambareau and P. Taquet. 1988. The Upper Cretaceous–Lower Tertiary marine to continental transition in the Bagua Basin, northern Peru: paleontology, biostratigraphy, radiometry, correlations. Newsletters on Stratigraphy 19(3):143-177
Categories:
- Geologic formations of Peru
- Upper Cretaceous Series of South America
- Cretaceous Peru
- Campanian Stage
- Maastrichtian Stage of South America
- Cretaceous–Paleogene boundary
- Paleogene Peru
- Paleocene Series of South America
- Danian Stage
- Selandian Stage
- Thanetian Stage
- Eocene Series of South America
- Ypresian Stage
- Lutetian Stage
- Bartonian Stage
- Shale formations
- Sandstone formations
- Fluvial deposits
- Shallow marine deposits
- Evaporite deposits
- Fossiliferous stratigraphic units of South America
- Paleontology in Peru