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Cleistosphaeridium regulatum
Cleistosphaeridium regulatum, (Zhou Heyi, 1985, p.7, pl.1, figs.16-17,19-21), Williams et al., 1998, p.335.
Originally (and now) Cleistosphaeridium, subsequently Impletosphaeridium, thirdly Sepispinula?. He Chengquan et al. (2009, p.290) retained this species in Cleistosphaeridium.
Holotype: Zhou Heyi, 1985, pl.1, fig.16.
Age: mid Oligocene.
Originally (and now) Cleistosphaeridium, subsequently Impletosphaeridium, thirdly Sepispinula?. He Chengquan et al. (2009, p.290) retained this species in Cleistosphaeridium.
Holotype: Zhou Heyi, 1985, pl.1, fig.16.
Age: mid Oligocene.