Alterbia acutula
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"+acutula" (Wilson, 1967b, p.225–226, figs.11–12) Lentin and Williams, 1976, p.48. Emendation: Khowaja-Ateequzzaman et al., 1991, p.41–42, as Alterbidinium acutulum. Holotype: Wilson, 1967b, fig.12. Combination illegitimate: the generic name Alterbia is illegitimate. NOW Alterbidinium. Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly (and now) Alterbidinium. Taxonomic junior synonyms: Albertia curvicornis and Albertia (subsequently Alterbia) recticornis, both according to Whitney (1979, p.125). The nomenclatural type of the genus Alterbia remains the holotype of Alterbia recticornis. Age: ?Maastrichtian (see Wilson, 1972).
Parent: Alterbia