Dinogymnium parvitum Liu Zhili and Zheng Yuefang in Liu Zhili et al., 1992, p.67, pl.7, figs.26-28.

NOW Tetrachacysta. Originally Dinogymnium, subsequently (and now) Tetrachacysta.

Holotype: Liu Zhili et al., 1992, pl.7, fig.26.
Age: early Tertiary.