Operculodinium rarispinosum
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?rarispinosum Cookson and Eisenack, 1971, p.220–221, pl.9, figs.7–8. Holotype: Cookson and Eisenack, 1971, pl.9, fig.7. Questionable assignment: Cookson and Eisenack (1971, p.220–221). Partridge in Lentin and Williams (1985, p.262) considered this species to be an acritarch. Age: Albian–Cenomanian.
Parent: Operculodinium