Xenascus ceratioides subsp. procerus
From dinoflaj2
subsp. procerus Yun Hyesu, 1981, p.61, pl.14, figs.5,8-9. Holotype: Yun Hyesu, 1981, pl.14, fig.9; Fensome et al., 1991, fig.2 - p.601; fig.3 - p.717. Age: Early Santonian. Parent: Xenascus ceratioides