Oligosphaeridium diluculum

diluculum Davey, 1982b, p.14-15, pl.2, figs.1-5.  Holotype: Davey, 1982b, pl.2, figs.1-2; Fauconnier and Masure, 2004, pl.58, figs.1-3.  Age: Late Ryazanian-Early Valanginian.

Parent: Oligosphaeridium