Permian marine sedimentation in northern Chile: new paleontological evidence from the Juan de Morales Formation, and regional paleogeographic implications

By Díaz Martínez, Enrique. Oxford Elsevier Science 2000 . pp. 511-525

Stratigraphy and depositional setting of Late Paleozoic Copacabana Formation in Bolivia

By Grader, George W.. Stuttgart E. Schweizerbart'sche Verlagsbuchhandlung 2000 . pp. 723-741