Tetrachacysta amphidoxosum

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amphidoxosum (Jiabo, 1978, p.93, pl.6, fig.2) He Chengquan et al., 2009, p.373.  Holotype: Jiabo, 1978, pl.6, fig.2.  NOW Tetrachacysta.  Originally Dinogymnium?, subsequently Microdinium, thirdly (and now) Tetrachacysta.  Age: Early Tertiary.

Parent: Tetrachacysta