Hystrichosphaeridium toryna

"toryna" Cookson and Eisenack, 1960b, p.252, pl.38, figs.6,15.  Holotype: Cookson and Eisenack, 1960b, pl.38, fig.15.  NOW Egmontodinium.  Originally Hystrichosphaeridium, subsequently Prolixosphaeridium?, thirdly Tanyosphaeridium, fourthly (and now) Egmontodinium.  N.I.A.  Age: Tithonian–Neocomian.

Parent: Hystrichosphaeridium