Collumosphaera Appendix A
From dinoflaj2
COLLUMOSPHAERA Jain and Dutta in Dutta and Jain, 1980, p.70. Acritarch genus. Taxonomic senior synonym: Cyclopsiella (Appendix A), according to Lentin and Williams (1985, p.66) - however, Lentin and Williams (1989, p.70) retained Collumosphaera. Type: Dutta and Jain, 1980, pl.4, fig.33, as Collumosphaera fruticosa.