Bohaidina subgenus Prominangularia

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"BOHAIDINA subgenus PROMINANGULARIA" (Jiabo, 1978, p.47) He Chengquan et al., 2009, p.453.  Emendation: Xu Jinli and Mao Shaozhi, 1989, p.303, as ProminangulariaCombination not validly published: no clear indication of rank.  We assume that the rank of subgenus was implied by He Chengquan et al. (2009) and so treat it as such here; but in doing so do not intend to validate the name.  Chen et al. (1988, p.23) included this taxon (as Prominangularia) in the acritarchs; however, Lentin in Lentin and Williams (1989, p.304) considered it to be a freshwater ceratioid dinoflagellate cyst.  He Chengquan et al. (2009, p.453–455) included the following species in this subgenus: Bohaidina dongyingensis, Bohaidina granulata, Bohaidina laevigata, Bohaidina micirugosa, Bohaidina reticulata and Bohaidina tuberculata. Type: Jiabo, 1978, pl.19, fig.7, as Prominangularia granulata.