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Collumosphaera
From Williams et al., 2017:
[Collumosphaera, Jain and Dutta in Dutta and Jain, 1980, p. 70
Acritarch genus.
tax. jr. synonym of Cyclopsiella Drugg and Leoblich, 1967, according to Lentin and Williams, 1985. Lentin and Williams, 1989, retained Collumosphaera as a separate genus.
Type species: Collumosphaera fruticosa, Dutta and Jain, 1980 (pl.4, fig.33)]
[Collumosphaera, Jain and Dutta in Dutta and Jain, 1980, p. 70
Acritarch genus.
tax. jr. synonym of Cyclopsiella Drugg and Leoblich, 1967, according to Lentin and Williams, 1985. Lentin and Williams, 1989, retained Collumosphaera as a separate genus.
Type species: Collumosphaera fruticosa, Dutta and Jain, 1980 (pl.4, fig.33)]