Impletosphaeridium capillare He Chengquan et al. 2005b, p.386,390–391, pl.2, figs.14,17.

Holotype: He Chengquan et al. 2005b, p.390–391, pl.2, fig.17.
Age: Miocene to early Pliocene.

Original description (He Chengquan et al., 2005b):