Isabelidinium dakotaense

"dakotaense" (Stanley, 1965, p.217–218, pl.19, figs.1–3) Lentin and Williams, 1977a, p.167.  Holotype: Stanley, 1965, pl.19, figs.1–3.  NOW Chatangiella?.  Originally Deflandrea, subsequently Isabelia (combination illegitimate), thirdly Isabelidinium, fourthly (and now) Chatangiella?.  Age: Paleocene.

Parent: Isabelidinium