Stratigraphic studies in northern Peru

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...