Biantholithus sparsus Bramlette & Martini, 1964
Species of Biantholithus Bramlette & Martini (1964) having six to twelve segments that are in contact along their entire length.
Biantholithus sparsus differs from Biantholithus astralis Steinmetz & Stradner (1984) and Biantholithus hughesii Varol (1989) by having six to twelve segments in contact throughout their entire length.
Bramlette, M. N. & Martini, E., (1964): The great change in calcareous nannoplankton fossils between the Maastrichtian and Danian. - Micropaleontology. 10(2): 291-322.
Steinmetz, J. C. & Stradner, H., (1984): Cenozoic calcareous nannofossils from Deep Sea Drilling Project Leg 75, Southeast Atlantic Ocean. - Initial Reports of the Deep Sea Drilling Project. 75: 671-753.
Varol, O., (1989): Palaeocene calcareous nannofossil biostratigraphy. In, Crux, J. A. & van Heck, S. E. (eds) Nannofossils and their applications: Proceedings of the 2nd INA Conference, London 1987. - British Micropalaeontological Society Publication Series. 265-310.
Bramlette & Martini, 1964