From Fensome et al., 2019:
Trichodinium bifurcatum Jain and Millepied, 1975, p.140–141, pl.1, figs.14–16.
Holotype: Jain and Millepied, 1975, pl.1, fig.14; Jan du Chêne et al., 1986a, pl.121, figs.6–8.
NOW Trichodinium castanea subsp. bifurcatum. Originally Trichodinium bifurcatum, subsequently (and now) Trichodinium castanea subsp. bifurcatum.
Age: Maastrichtian.

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