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Xandarodinium
From Williams et al., 2017:
[Xandarodinium, Reid, 1977, p. 446-447
Matsuoka (1992, p.451) considered Sumatradinium to be the possible taxonomic senior synonym of this genus.
Type species: Xandarodinium xanthum, Reid, 1977 (pl.3, figs.27–28)]
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Original description: [Reid, 1977]:
Diagnosis:
Elliptical cysts with an irregular outline formed by the extension of the wall into hollow, tubular processes open to the internal cavity, but closed distally.
Affinities:
The archaeopyle consisting of a single plate appears to be intercalary. This genus differs from any other previously described in its hollow processes opening to the interior and its irregular shape.
[Xandarodinium, Reid, 1977, p. 446-447
Matsuoka (1992, p.451) considered Sumatradinium to be the possible taxonomic senior synonym of this genus.
Type species: Xandarodinium xanthum, Reid, 1977 (pl.3, figs.27–28)]
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Reid, 1977]:
Diagnosis:
Elliptical cysts with an irregular outline formed by the extension of the wall into hollow, tubular processes open to the internal cavity, but closed distally.
Affinities:
The archaeopyle consisting of a single plate appears to be intercalary. This genus differs from any other previously described in its hollow processes opening to the interior and its irregular shape.