Hystrichosphaera cingulata var. perforata

"var. perforata" Clarke and Verdier, 1967, p.46-47, pl.9, figs.2-4; text-fig.19.  Holotype: Clarke and Verdier, 1967, pl.9, figs.2-3; Jan du Chêne et al., 1986a, pl.89, figs.1-3.  Originally Hystrichosphaera cingulata var. perforata, subsequently Spiniferites cingulatus subsp. perforatus, thirdly Spiniferites? cingulatus subsp. perforatus.  Taxonomic senior synonym: Hystrichosphaera cingulata var. reticulata (now Pterodinium cingulatum subsp. reticulatum), according to Clarke et al. (1968, p.181).  Age: Cenomanian. Parent: Hystrichosphaera cingulata