Apectodinium summissum
From dinoflaj3
summissum (Harland, 1979c, p.66–67, pl.1, fig.12) Lentin and Williams, 1981, p.14. Holotype: Harland, 1979c, pl.1, fig.12. Originally Wetzeliella subgenus Apectodinium, subsequently (and now) Apectodinium, thirdly Krutzschidinium (combination not validly published). Strauss (1991a, p.57) considered this species to be the possible senior synonym of Krutzschidinium spinosum. Age: late Paleocene.
Parent: Apectodinium