Author: Madra, Y.T., 1968.:
Title: Silicoflagellates from the Cretaceous, Eocene, and Miocene of California, U.S.A.
Description: Proc. California Acad. Sci., Ser. 4, 36(9): pp. 231-277, 83 figs., 7 tabs., refs. Plain new wrappers.

Keywords: