Senoniasphaera inornata
From dinoflaj3
inornata (Drugg, 1970b, p.811–812, figs.3C–F) Stover and Evitt, 1978, p.80. Holotype: Drugg, 1970b, fig.3C. Originally Chiropteridium, subsequently (and now) Senoniasphaera. Age: Danian.