Hafniasphaera
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HAFNIASPHAERA Hansen, 1977, p.13–14. Emendation: Fensome et al., 2009, p.34. Originally (and now) Hafniasphaera, subsequently Spiniferites subgenus Hafniasphaera. Taxonomic senior synonym: Spiniferites, according to Stover and Williams (1987, p.117) — however, Edwards (1996, p.989) retained Hafniasphaera. Taxonomic junior synonym: Rivernookia, according to Lentin and Williams (1985, p.311). Fensome et al. (2009, p.34) retained Hafniasphaera at generic rank. Type: Hansen, 1977, fig.18A, as Hafniasphaera hyalospinosa.
Parent: Subfamily Gonyaulacoideae
Species List: