Polysphaeridium laminaspinosum
From dinoflaj2
"laminaspinosum" Davey and Williams, 1966b, p.94-95, pl.8, fig.8. Holotype: Davey and Williams, 1966b, pl.8, fig.8; Fauconnier and Masure, 2004, pl.19, fig.16. NOW Dapsilidinium. Originally Polysphaeridium, subsequently (and now) Dapsilidinium. Age: Cenomanian.
Parent: Polysphaeridium