Hystrichodinium dasum

?dasum Davey, 1969a, p.175–176, pl.10, figs.8–9.  Holotype: Davey, 1969a, pl.10, fig.8.  Originally Hystrichodinium, subsequently (and now) Hystrichodinium?.  Questionable assignment: Stover and Evitt (1978, p.162).  Principle 5 of the I.C.N. states that "... names of taxonomic groups are treated as Latin regardless of their origin." Thus, the epithet "dasys" should be Latinized to "dasus", with the neuter form being "dasum".  Age: Cenomanian.

Parent: Hystrichodinium