Duosphaeridium

DUOSPHAERIDIUM Davey and Williams, 1966b, p.97.  Although the "type species" was not validly transferred by Davey and Williams (1966b), the generic name Duosphaeridium was validly published by these authors, since it is based on a previously validly published species name.  Type: Cookson, 1965a, pl.10, fig.1, as Diphyes nudum.

Parent: Order Gonyaulacales Suborder uncertain Family uncertain

Species List:

*Duosphaeridium nudum
Duosphaeridium rugosum