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Stratigraphic studies in northern Peru

1950; Yale University; Volume: 248; Issue: 4 Linguagem: Inglês

10.2475/ajs.248.4.249

1945-452X

Bernhard Kummel,

Paleontology and Evolutionary Biology

Detailed measured sections of Permian, Triassic, Liassic, Neocomian, and Aptian rocks are described from the Cordillera Central, Cerro de Caya Caya, Departamento de Amazonas, Peru. The stratigraphic data presented are the bases for extensive faunal studies on the Triassic and Permian which are now being carried on. The Permian section is the most northern fossiliferous Permian section so far reported and its fusulinids indicate an early Leonard age. This is also the youngest Permian studied in Peru to date. The Triassic rocks contain the only ammonite fauna of that age yet discovered from Peru.