Polysphaeridium? paulinae (Valensi, 1953) Davey and Williams, 1969

Now Dapsilidinium?. Originally Micrhystridium (an acritarch genus), subsequently
Hystrichosphaeridium, thirdly Polysphaeridium?, fourthly Dapsilidinium?. At the time of the transfer, Davey and Williams, 1969 questionably included this species in Polysphaeridium. Stover and Evitt, 1978 considered this to be a "problematical species" of Polysphaeridium. This combination was not validly published in Davey and Williams, 1966, since these authors did not fully reference the basionym. Davey and Williams, 1966 questionably included the species in Polysphaeridium. Holotype: Valensi, 1953, pl.l2, fig.6
Age: Middle Jurassic