From Fensome et al., 2019:
Trichodinium boltenhagenii Masure in Fauconnier and Masure, 2004, p.116.
Emendation: Masure in Fauconnier and Masure, 2004, p.116–117, as Trichodinium boltenhagenii.
Holotype: Boltenhagen, 1977, pl.7, figs.1a–b; Fauconnier and Masure, 2004, pl.15, fig.6.
Originally Chytroeisphaeridia spinosa, subsequently Cleistosphaeridium? spinosum, thirdly Circulodinium spinosum, fourthly (and now) Trichodinium boltenhagenii.
Substutute name for Chytroeisphaeridia spinosa Boltenhagen, 1977, p.54–55, pl.7, figs.1a–b,2,3a–b,4a–b,5a–b, since the name Trichodinium spinosum is preoccupied.
Age: Cenomanian–Turonian.

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