Calcigonellum minutum
From dinoflaj3
?minutum Keupp, 1987, p.40–41, pl.6, figs.1–7; text-fig.2a. Holotype: Keupp, 1987, pl.6, figs.5–6. Originally Calcigonellum, subsequently Keuppisphaera (combination not validly published), thirdly (and now) ?Calcigonellum. Questionable assignment: Streng et al. (2004, p.481). Age: middle Albian–early Cenomanian.
Parent: Calcigonellum