Biscutum parvulum Romein, 1979
Romein, A. J. T., 1979. Lineages in Early Paleogene calcareous nannoplankton. Utrecht Micropaleontological Bulletin 22, 1-231.
Varol, O. 1989c. 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.
Biscutum parvulum
Romein, 1979
Early Paleocene
Barranco del Gredero. Caracava, Spain