The Cajones Formation is a Turonian geologic formation of central Bolivia. The fluvial sandstones in Amboró National Park preserve fossils of Yacarerani boliviensis.Novas et al., 2009, p.1316Amboro National Park at Fossilworks.org 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.Novas et al., 2009, p.1319
See also List of fossiliferous stratigraphic units in Bolivia Chaunaca Formation Toro Toro Formation
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