Bourkidinium cylindricum

?cylindricum Dolding, 1992, p.313,315, figs.3c–e,4a–d,h. Holotype: Dolding, 1992, figs.3c,4a–c. Questionable assignment: Dolding (1992, p.313). Contrary to the statement of Lentin and Williams (1993, p.66), the repository for the holotype of this species was cited in Dolding (1992, p.313). Age: late Campanian.