Alterbia circula

"circula" Heilmann-Clausen, 1985, p.16–17, pl.1, figs.1–8; text-fig.5.  Holotype: Heilmann-Clausen, 1985, pl.1, figs.1–2.  NOW Alterbidinium.  Originally Alterbia (generic name illegitimate), subsequently (and now) Alterbidinium.  Following I.C.N. Article 55.1, the species name Alterbia circula is validly published even though the generic name Alterbia is illegitimate.  Age: early Paleocene.

Parent: Alterbia