Hystrichosphaera cingulata var. perforata
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"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