Polysphaeridium assamicum
From dinoflaj2
"assamicum" Mehrotra, 1983, p.18, pl.5, figs.4,8-9. Holotype: Mehrotra, 1983, pl.5, fig.4. NOW Dapsilidinium. Originally Polysphaeridium, subsequently (and now) Dapsilidinium. This name was not validly published in Mehrotra and Sah (1982, p.129; pl.3, figs.1-2), since these authors did not provide a description. Age: Early Tertiary.
Parent: Polysphaeridium