Tanyosphaeridium toryna

"toryna" (Cookson and Eisenack, 1960b, p.252, pl.38, figs.6,15) Stover and Evitt, 1978, p.85.  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: Tanyosphaeridium