Neogene: Helicosphaera recta; Helicosphaera
Paleogene: Helicosphaera recta
Helicosphaera recta (Haq, 1966) Jafar and Martini, 1975 [Helicopontosphaera]
Description: Large size, sub-rectangular shape. Wing ends in spur, central-area with two large pores separated by narrow conjunct bar.
Original description:
Synonym: H. truncata Bramlette and Wilcoxon, 1967
Neogene: Helicosphaera recta
Paleogene: Helicosphaera recta