Cajones Formation

Cajones Formation
Stratigraphic range: Turonian
~94–85 Ma
TypeGeological formation
Lithology
PrimarySandstone
Location
Coordinates17°36′S 63°54′W / 17.6°S 63.9°W / -17.6; -63.9
Approximate paleocoordinates23°24′S 41°30′W / 23.4°S 41.5°W / -23.4; -41.5
RegionSanta Cruz Department
Country Bolivia
ExtentCordillera Oriental
Type section
Named forCajones de Ichilo River
Cajones Formation is located in Bolivia
Cajones Formation
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]

Interpretation of Yacarerani boliviensis
  1. ^ Novas et al., 2009, p.1316
  2. ^ Amboro National Park at Fossilworks.org
  3. ^ Novas et al., 2009, p.1319