New Species of Benthic Foraminifera from the Neogene Sequence of ODP Sites 757B and 758A, Northeastern Indian Ocean

Abstract

Studies of deep-sea benthic foraminifera in Neogene samples 20 India from ODP Holes 757B (17? 01.458'S, 88?10.889'E; present water depth 1663.0m) and 758A (5? 23.049'N, 90? 21.673'E; present water depth 2923.6 m), northeastern Indian Ocean (text-fig. 1) revealed three new species of benthic foraminifera: Globo7 F cassidulina thomasae, Uvigerina buzasi and Epistominella 0 I C guptaae. All three species have rare and sporadic occurrences. 0 Globocassidulina thomasae ranges from late early Miocene to Ninety st latest Pleistocene, Uvigerina buzasi from middle Miocene to Ni n ey ea latest Miocene and Epistominella guptaae from late early MioR d g cene to earliest Pliocene. 0 757 Taxonomic identifications are based on Loeblich and Tappan 20 t (1988) and Buzas (1997, pers. comm.). The time frame for the sites studied is based on biostratigraphy and paleomagnetic data 7 56 (Peirce et al. 1989; Klootwijk et al. 1991).