Riffin T Sajeev* Department of Geology, Periyar University, Salem,INDIA .*riffin@rediffmail.com The eastern coast lines of southern India are rarely used to study its paleontological importance. Living oysters of Crassostrea Sp. are found throughout these coastal margins. Recent reports indicate the existence of a paleo-estuary dated to the mio-pliocene age, along the valleys of the southern […]