Kallosphaeridium nigeriense

nigeriense Jan du Chêne et al., 1985a, p.12, pl.4, figs.1–13.  Holotype: Jan du Chêne et al., 1985a, pl.4, figs.1–3.  Age: late Paleocene (Thanetian)–early Eocene (Ypresian).

Parent: Kallosphaeridium