972. DISCOVERY OF MIDDLE PENNSYLVANIAN FUSULINACEANS AND CONODONTS FROM THE COPACABANA GROUP IN THE LAKE TITICACA REGION, BOLIVIA

Abstract

Fusulinaceans and conodonts indicating the Atokan (early Middle Pennsylvanian) of North America are now discovered for the first time from the lower part of the Copacabana Group which was previously considered Virgilian (latest Pennsylvanian) to Leonardian (early Middle Permian) in age. The fusulinaceans, Profusulinella sp. indet. and Profusulinella munda Thompson, and conodonts, Diplognathodus orphanus (Merrill), Idiognathodus delicatus Gunnell and Neognathodus medadultimus Merrill are described and illustrated. These faunules may be included in the Midcontinent-Andean Province.