Hystrichosphaeridium rhopalophorum
From dinoflaj2
"rhopalophorum" Valensi, 1955a, p.36, fig.1C. Holotype: Valensi, 1955a, fig.1C. NOW Exochosphaeridium. Originally Hystrichosphaeridium, subsequently (and now) Exochosphaeridium. Age: Late Cretaceous.
Parent: Hystrichosphaeridium
