Late Miocene (N eillian) Planktonic Foraminifera from Baratang Island, Andaman Sea

Abstract

Neogene sequences exposed on the southwestern part of the Baratang Island have been assigned Early to Middle Miocene (?) and Late Miocene age. Biostratigraphically, the Late Miocene sequence is referable to Globorotalia (Globorotalia) plesiotumida Zone. A predominantly warm-water assemblage of planktonic foraminifera contains some cold-water species. Presence of these cold-water forms is linked with the Late Miocene climatic cooling.