Sentusidinium ?bifidum (Jiabo, 1978, p.51–52, pl.22, figs.7–16) He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al., 1989, p.66–67, pl.16, figs.17–23.

Originally Tenua Eisenack, subsequently Cleistosphaeridium?, thirdly (and now) Sentusidinium. Questionable assignment: Xu Jinli et al. (1997, p.46); and Courtinat in Fauconnier and Masure (2004, p.486) as a problematic species. Islam (1993, p.87) also proposed this combination.

Holotype: Jiabo, 1978, pl.22, fig.8.
Age: Early Tertiary.