Diacanthum tenuiceras

"tenuiceras" (Eisenack, 1958a, p.389–391 pl.21, figs.14–15; pl.22, figs.1–3; pl.24, fig.2; text-figs.4a–c,5) Stover and Evitt, 1978, p.152.  Emendations: Sarjeant, 1985a, p.63,65–66, as Acanthaulax? tenuiceras; Jan du Chêne et al., 1986b, p.29–30, as Tehamadinium tenuiceras.  Holotype: Eisenack, 1958a, pl.21, fig.15; Sarjeant, 1985a, pl.6, figs.1–2; text-fig.3; Jan du Chêne et al., 1986a, pl.118, fig.1; Jan du Chêne et al., 1986b, pl.24, fig.5.  NOW Cribroperidinium?.  Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta?, thirdly Diacanthum, fourthly Occisucysta, fifthly Acanthaulax?, sixthly Tehamadinium, seventhly (and now) Cribroperidinium?.  Taxonomic junior synonym: Occisucysta victorii, according to Pöthe de Baldis and Ramos (1988, p.33).  Age: late Barremian–Aptian.

Parent: Diacanthum