Chytroeisphaeridia cariacoensis

"cariacoensis" Wall, 1967, p.113, pl.16, figs.13–14.  Emendation: Matsuoka, 1987, p.53, as Brigantedinium cariacoense.  Holotype: Wall, 1967, pl.16, fig.14.  NOW Brigantedinium.  Originally Chytroeisphaeridia, subsequently (and now) Brigantedinium.  Motile equivalent: Protoperidinium avellanum (Meunier, 1919) Balech, 1974, according to Wall and Dale (1967, p.350) and Harland (1981, p.68).  Age: Quaternary.

Parent: Chytroeisphaeridia