Cajones Formation

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

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	17.6°S 63.9°W
Approximate paleocoordinates	23.4°S 41.5°W
Region	Santa Cruz Department
Country	Bolivia
Extent	Cordillera Oriental
Type section
Named for	Cajones de Ichilo River
Cajones Formation (Bolivia)

See also

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

References

1. Novas et al., 2009, p.1316
2. Amboro National Park at Fossilworks.org
3. Novas et al., 2009, p.1319

Bibliography

• Novas, F.E.; D.F. Pais; D. Pol; I.S. Carvalho; A. Scanferla; A. Mones, and M.S. Riglos. 2009. Bizarre notosuchian crocodyliform with associated eggs from the Upper Cretaceous of Bolivia. Journal of Vertebrate Paleontology 29. 1316–1320. Accessed 2019-03-03.