Spiniferites subgenus Hafniasphaera
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"SPINIFERITES subgenus HAFNIASPHAERA" (Hansen, 1977, p.13-14) Quattrocchio and Sarjeant, 2003, p.;140. Emendation: Fensome et al., 2009, p.34, as Hafniasphaera. NOW Hafniasphaera. 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.