Alterbidinium acutulum

+acutulum (Wilson, 1967b, p.225–226, figs.11–12) Lentin and Williams, 1985, p.14.  Emendation: Khowaja-Ateequzzaman et al., 1991, p.41–42, as Alterbidinium acutulum.  Holotype: Wilson, 1967b, fig.12.  Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly (and now) Alterbidinium.  Taxonomic junior synonyms: Albertia recticornis, according to Whitney (1979, p.125) and Lentin and Williams (1993, p.14); Albertia curvicornis, according to Whitney (1979, p.125).  The nomenclatural type of the genus Alterbidinium remains the holotype of Alterbidinium recticorne.  Age: ?Maastrichtian (see Wilson, 1972, p.184).

Parent: Alterbidinium