Goniosphaeridium Appendix A

"GONIOSPHAERIDIUM" Eisenack, 1969a, p.256.  Emendations: Kjellström, 1971a, p.43; Turner, 1984, p.111-112; Eiserhardt, 1992, p.28.  Acritarch genus.  Taxonomic senior synonym: Polygonium (Appendix A), according to Le Hérissé (1989, p.181) and Sarjeant and Stancliffe (1996, p.358).  For further synonymy see Fensome et al. (1990, p.232).  Type: Eisenack, 1931, pl.4, fig.19, as Ovum hispidum subsp. polygonale.