Heslertonia cylindrata
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cylindrata Yun Hyesu, 1981, p.72, pl.8, figs.3a-b,11; text-figs.15a-b. Holotype: Yun Hyesu, 1981, pl.8, figs.3a-b; text-figs.15a-b; Fensome et al., 1991, figs.1-4 - p.637. Age: Early Santonian.
Parent: Heslertonia