ORNATODELLA ANAN, A NEW YPRESIAN ROTALIID BENTHIC FORAMINIFERAL GENUS FROM PAKISTAN

Abstract

Ornatodella Anan is introduced here to elucidate a new Ypresian Rotaliid benthic foraminiferal genus, which represents a transition from between the two benthic foraminiferal genera: Ornatanomalina Haque, 1956 (with the spiraling ribs in the end stage of coiling) and Saudella Hasson, 1985 (with pustule in the early stage). According to Loeblich & Tappan the two genera: Ornatanomalina Haque and Saudella Hasson appear to be both congeneric, which doesn’t accepted here. Ornatodella n. gen. may represents an excellent biostratigraphic marker of the Paleocene Eocene Thermal Maximum (PETM, zone E1).

Keywords

• rotaliid benthic foraminifera
• ornatodella pustulosa
• paleocene
• pakistan