Apectodinium caiobense

"caiobense" (Regali et al., 1974, p.290, pl.24, fig.4) Lentin and Williams, 1981, p.14.  Holotype: Regali et al., 1974, pl.24, fig.4.  Originally Hystrichosphaeridium, subsequently Apectodinium.  Taxonomic senior synonym: Wetzeliella (now Apectodinium) homomorpha, according to Williams et al. (1993, p.57).  Age: Paleocene.

Parent: Apectodinium