Alterbidinium pentaradiatum
From dinoflaj3
?pentaradiatum (Cookson and Eisenack, 1965c, p.139–140, pl.18, figs.1–2) Lentin and Williams, 1985, p.15. Holotype: Cookson and Eisenack, 1965c, pl.18, fig.1; Stover, 1974, pl.2, figs.6a–b. Originally Deflandrea, subsequently Alterbia? (combination illegitimate), thirdly (and now) Alterbidinium? Questionable assignment: Lentin and Williams (1985, p.15). Age: Paleocene.
Parent: Alterbidinium
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