Stephodinium spiniferum
From dinoflaj3
"spiniferum" Cookson and Eisenack, 1965a, p.124–125, pl.14, fig.10. Holotype: Cookson and Eisenack, 1965a, pl.14, fig.10. NOW Thalassiphora?. Originally Stephodinium, subsequently (and now) Thalassiphora?. Age: late Eocene.
Parent: Stephodinium