Achomosphaera spongiosa
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spongiosa Matsuoka and Bujak, 1988, p.37-38, pl.1, figs.5-7; pl.2, figs.1-3. Holotype: Matsuoka and Bujak, 1988, pl.2, fig.2. Age: Late Oligocene-Early Miocene.
Parent: Achomosphaera