Chota Formation
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[edit]
References[edit]
Bibliography[edit]
- Chacaltana, César; Alexandra Lucytania Benites Cañote; Waldir Valdivia, and Marco Chumpitaz. 2014. La formación Chota en la Cuenca Bagua: Evaluación e implicancias del criterio de clasificación litoestratigráfico, 1-4. Congreso Peruano de Geología. Accessed 2017-06-05.
- Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
Further reading[edit]
- Aliaga Chávez, Manuel Jesús. s.a. Estudio geológico, 1-22. UNMSM. Accessed 2017-06-05.
- Cruzado Vásquez, Gilberto. 2009. Estudio de geología, 1-90. Gobierno regional de Cajamarca. Accessed 2017-06-05.
- 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