Circulodinium attadalicum

attadalicum (Cookson and Eisenack, 1962b, p.495, pl.5, figs.12–15) Helby, 1987, p.324–325.  Holotype: Cookson and Eisenack, 1962b, pl.5, fig.13.  Originally Cyclonephelium?, subsequently Aptea, thirdly Canningia, fourthly (and now) Circulodinium.  Age: Aptian–Albian.

Parent: Circulodinium