Tectatodinium grande
From dinoflaj3
"grande" Williams et al., 1993, p.57. Holotype: Manum et al., 1989, pl.20, figs.3–4, as Tectatodinium sp. 2. Taxonomic senior synonym: Tectatodinium pellitum, according to Head (1994a, p.308). Age: late Miocene, ?Tortonian.