Tetrachacysta spinulosa
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spinulosa (Gao Ruiqi et al., 1992a, p.19–20,26, pl.1, figs.7–8) Mao Shaozhi et al., 1999, p.158. Holotype: Gao Ruiqi et al., 1992a, pl.1, fig.7. Originally Dinogymniopsis, subsequently (and now) Tetrachacysta. Taxonomic junior synonym: Dinogymnium velutinum, according to He Chengquan et al. (2009, p.377). Age: Cenomanian.
Parent: Tetrachacysta