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Colonsaydinium
From Williams et al., 2017:
[Colonsaydinium, Hunt in Hunt et al., 1985, p. 103
Type species: Colonsaydinium psilatum, Hunt in Hunt et al., 1985 (pl.2, figs.4–5)]
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Original description: [Hunt in Hunt et al., 1985]:
Diagnosis:
Proximate, cornucavate to circumcavate dinoflagellate cysts with a rounded peridinioid outline. Tabulation poorly delineated except for combination archaeopyle. Operculum free, probably plates 1-2i, 3-5".
[Colonsaydinium, Hunt in Hunt et al., 1985, p. 103
Type species: Colonsaydinium psilatum, Hunt in Hunt et al., 1985 (pl.2, figs.4–5)]
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Original description: [Hunt in Hunt et al., 1985]:
Diagnosis:
Proximate, cornucavate to circumcavate dinoflagellate cysts with a rounded peridinioid outline. Tabulation poorly delineated except for combination archaeopyle. Operculum free, probably plates 1-2i, 3-5".