Chota Formation

Chota Formation
Chota Formation
Stratigraphic range: Early Campanian-Late Eocene; ~83–35 Ma PreꞒ Ꞓ O S D C P T J K Pg N
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
	Chota Formation (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 ("Baguasaurus").^[1] The formation was formerly named Bagua Formation.^[2]

References

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