Exochosphaeridium robustum
From dinoflaj2
robustum Backhouse, 1988, p.85, pl.26, figs.9a-b,10a-b; pl.28, fig.7; pl.48, fig.1. Holotype: Backhouse, 1988, pl.26, figs.10a-b; Fensome et al., 1996, figs.3-4 - p.2331. Age: Late Valanginian-Early Barremian.
Parent: Exochosphaeridium