Hystrichosphaeridium mantellii
From dinoflaj2
"mantellii" Davey and Williams, 1966b, p.66, pl.6, fig.6. Holotype: Davey and Williams, 1966b, pl.6, fig.6; Davey and Verdier, 1973, pl.4, figs.1,3. NOW Florentinia. Originally Hystrichosphaeridium, subsequently (and now) Florentinia. Age: Late Cenomanian.
Parent: Hystrichosphaeridium