Canningia pentagona
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"pentagona" He Chengquan, 1991, p.56, pl.9, figs.13-14. Holotype: He Chengquan, 1991, pl.9, fig.13. NOW Circulodinium. Originally Canningia, subsequently (and now) Circulodinium. Age: Late Cretaceous.
Parent: Canningia