Hystrichosphaera bentorii var. truncata
From dinoflaj2
"var. truncata" Rossignol, 1964, p.85, pl.1, figs.5-6; pl.3, fig.1. Holotype: Rossignol, 1964, pl.1, figs.5-6. NOW Spiniferites bentorii subsp. truncatus. Originally Hystrichosphaera bentori var. truncata, subsequently (and now) Spiniferites bentori subsp. truncatus. Age: Quaternary. Parent: Hystrichosphaera bentorii