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
Approximate paleocoordinates	7.5°S 60.6°W / -7.5; -60.6
Region	Cajamarca
Country	Peru
Extent	Bagua Basin
Type section
Named for	Chota
Named by	Broggi
Location	Esperanza, Cajamarca
Year defined	1942

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Type locality of the Chota Formation in Peru

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. The formation was formerly named Bagua Formation.

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with indeterminate dinosaur fossils

References

Bibliography

• 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.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.

Further reading

• 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