Palaeohystrichophora isodiametrica

"isodiametrica" Cookson and Eisenack, 1958, p.38, pl.12, figs.11–12.  Holotype: Cookson and Eisenack, 1958, pl.12, figs.11–12.  NOW Hystrichodinium.  Originally Palaeohystrichophora, subsequently (and now) Hystrichodinium.  Age: Campanian–early Maastrichtian.

Parent: Palaeohystrichophora