Operculodinium spinigerum

"?spinigerum" Brideaux, 1977, p.30, pl.12, figs.8-9; pl.13, figs.1-11.  Holotype: Brideaux, 1977, pl.12, figs.8-9; pl.13, figs.1-4.  Originally Operculodinium?, subsequently Protoellipsodinium.  Questionable assignment: Brideaux (1977, p.30).  Taxonomic senior synonym: Protoellipsodinium clavulus, according to Duxbury (1983, p.53).  Age: Barremian.

Parent: Operculodinium