From Fensome et al., 2019:
Apectodinium 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.

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