Palaeotetradinium caudatum

caudatum (Benson, 1976, p.218,220, pl.13, figs.4–6) Stover and Evitt, 1978, p.71. Holotype: Benson, 1976, pl.13, figs.4–6. Originally Inversidinium, subsequently (and now) Palaeotetradinium. Age: late Maastrichtian–early Paleocene.