Cajones Formation

Cajones Formation
Stratigraphic range: Turonian ~94–85 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Lithology
Primary	Sandstone
Location
Coordinates	17°36′S 63°54′W / 17.6°S 63.9°W / -17.6; -63.9
Approximate paleocoordinates	23°24′S 41°30′W / 23.4°S 41.5°W / -23.4; -41.5
Region	Santa Cruz Department
Country	Bolivia
Extent	Cordillera Oriental
Type section
Named for	Cajones de Ichilo River
Cajones Formation (Bolivia)

The Cajones Formation is a Turonian geologic formation of central Bolivia. The fluvial sandstones in Amboró National Park preserve fossils of Yacarerani boliviensis.^[1][2] The formation is correlated with the Adamantina Formation of the Paraná Basin in Brazil and the Bajo de la Carpa Formation of the Neuquén Basin in Patagonia, Argentina.^[3]

• List of fossiliferous stratigraphic units in Bolivia
• Chaunaca Formation
• Toro Toro Formation

• Novas, F.E.; Pais, D.F.; Pol, D.; Carvalho, I.S.; Scanferla, A.; Mones, A.; Riglos, M.S. (2009), "Bizarre notosuchian crocodyliform with associated eggs from the Upper Cretaceous of Bolivia", Journal of Vertebrate Paleontology, 29 (4): 1316–1320, Bibcode:2009JVPal..29.1316N, doi:10.1671/039.029.0409, hdl:11336/54001, retrieved 2019-03-03