Dinogymnium velutinum Liu Zhili and Zheng Yuefang in Liu Zhili et al., 1992, p.68, pl.7, figs.20,24-25.

Taxonomic senior synonym: Tetrachacysta spinulosa, according to He Chengquan et al. (2009, p.377).

Holotype: Liu Zhili et al., 1992, pl.7, fig.20.
Age: early Tertiary.