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Batiacasphaera minuta
Batiacasphaera minuta, (Matsuoka, 1983); emend. Matsuoka and Head, 1992
Originally Tectatodinium, subsequently (and now) Batiacasphaera. Head in Head and Wrenn (1992, p.3) and Schreck and Matthiessen (2013, p.295) considered this species to be a possible taxonomic junior synonym of Batiacasphaea micropapillata.
Holotype: Matsuoka, 1983, pl.6, fig.7; Matsuoka and Head, 1992, pl.l, figs.l-11; text-figs.1lA-C
Age: Early-Middle Miocene
Originally Tectatodinium, subsequently (and now) Batiacasphaera. Head in Head and Wrenn (1992, p.3) and Schreck and Matthiessen (2013, p.295) considered this species to be a possible taxonomic junior synonym of Batiacasphaea micropapillata.
Holotype: Matsuoka, 1983, pl.6, fig.7; Matsuoka and Head, 1992, pl.l, figs.l-11; text-figs.1lA-C
Age: Early-Middle Miocene