Dinogymnium sphaerocephalum
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"sphaerocephalum" (Vozzhennikova, 1967, p.48, pl.2, fig.7; pl.3, fig.1) Lentin and Williams, 1973, p.50. Emendation: Lentin and Vozzhennikova, 1990, p.25-26, as Alisogymnium sphaerocephalum. Holotype: Vozzhennikova, 1967, pl.3, fig.1; Lentin and Vozzhennikova, 1990, Appendix A, fig.30. NOW Alisogymnium. Originally Gymnodinium (Appendix B), subsequently Dinogymnium, thirdly (and now) Alisogymnium. Taxonomic junior synonym: Dinogymnium assamicum, according to Jain (1977a, p.133-134) - however, Lentin and Vozzhennikova (1990, p.28) retained Dinogymnium (as Alisogymnium) assamicum. Age: Senonian.
Parent: Dinogymnium
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