Impletosphaeridium brevibaculum
From dinoflaj2
brevibaculum (Song Zhichen in Song Zhichen et al., 1985, p.31, pl.4, fig.10) Islam, 1993, p.85. Holotype: Song Zhichen et al., 1985, pl.4, fig.10. Originally Cleistosphaeridium, subsequently (and now) Impletosphaeridium. Age: Cenozoic.
Parent: Impletosphaeridium
