Low-diversity calcareous dinoflagellate cysts were studied by SEM in 10 samples from the Lower Cretaceous of Hole 761C (256-235 mbsf). The ?late Aptian/Albian age interval can be recognized because of the calcispheres present. The new orthopithonelloid genus Bitorus is introduced.
X = present. - = absent
Supplement to: Keupp, Helmut (1992): Calcareous dinoflagellate cysts from the lower Cretaceous of Hole 761C, Wombat Plateau, Eastern Indian Ocean. In: von Rad, U; Haq, BU; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 122, 497-509