Microdinium dentatum forma sphaericum
From dinoflaj3
"forma sphaericum" Vozzhennikova, 1967, p.95–96, pl.36, figs.2a–b; pl.38, figs.1a–b. Emendation: Lentin and Vozzhennikova, 1990, p.115, as Sokolovidinium sphaericum. Holotype: Vozzhennikova, 1967, pl.38, figs.1a–b; Lentin and Vozzhennikova, 1990, pl.13, figs.5–6; text-fig.67. NOW Sokolovidinium sphaericum. Originally Microdinium dentatum forma sphaericum, subsequently Microdinium dentatum subsp. sphaericum, thirdly (and now) Sokolovidinium sphaericum. Age: Late Cretaceous.
Parent: Microdinium dentatum