Impletosphaeridium regulatum

"regulatum" (Zhou Heyi, 1985, p.7, pl.1, figs.16-17,19-21) Williams et al., 1998, p.335.  Holotype: Zhou Heyi, 1985, pl.1, fig.16.  NOW Sepispinula?.  Originally Cleistosphaeridium, subsequently Impletosphaeridium, thirdly (and now) Sepispinula?.  Age: mid Oligocene.

Parent: Impletosphaeridium