Trichodinium castanea
castanea Deflandre, 1935, p.229, pl.6, fig.8 ex Clarke and Verdier, 1967, p.19–20. Holotype: Deflandre, 1935, pl.6, fig.8; Deflandre, 1936b, pl.6, fig.1; Jan du Chêne et al., 1986a, pl.122, figs.9–10. Originally Palaeoperidinium (name not validly published), subsequently (and now) Trichodinium. Taxonomic senior synonyms: Apteodinium (as and now Trichodinium) ciliatum and Trichodinium intermedium, both by implication in Clarke and Verdier (1967, p.19), who believed Trichodinium castanea to be the senior name — however, subsequent workers have retained the three species (e.g. see Morgan, 1980, p.33; Harding, 1990b, p.38). A full description of this species was given in Deflandre (1936b, p.177–178). The name Palaeoperidinium castanea was not validly published in Deflandre (1935) since the generic name Palaeoperidinium was not validly published until 1967. N.I.A. Age: ?Senonian (erratic).
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