From Fensome et al., 2019:
Tetrachacysta multispinosa (Xu Jinli et al., 1997, p.118, pl.22, figs.7–8) He Chengquan et al., 2009, p.376,671.
Holotype: Xu Jinli et al., 1997, pl.22, fig.8.
Originally Delozonocysta (name not validly published), subsequently (and now) Tetrachacysta.
The name Delozonocysta multispinosa was not validly published in Xu Jinli et al. (1997), since no English or Latin description was provided; He Chengquan et al. (2009, p.671) validated the name by publishing an English diagnosis on proposing the transfer to Tetrachacysta.
Age: Middle–Late Eocene.

---------------------------------------------------------------------------------------------------