Surculosphaeridium cassospinum

?cassospinum Yun Hyesu, 1981, p.39, pl.16, figs.4,9,11.  Holotype: Yun Hyesu, 1981, pl.16, fig.11; Fensome et al., 1991, fig.3 — p.599.  Questionable assignment: Yun Hyesu (1981, p.39) and Fauconnier and Pourtoy in Fauconnier and Masure (2004, p.519) as a problematic species.  Age: early Santonian.

Parent: Surculosphaeridium