Valvaeodinium spongiosum var. spongiosum
From dinoflaj2
"var. spongiosum". Autonym. Holotype: Below, 1987b, pl.23, figs.6-10; Fensome et al., 1993a, fig.1 - p.1345; figs.1-4 - p.1347. Now redundant. Parent: Valvaeodinium spongiosum