Cordosphaeridium vulgatum
From dinoflaj3
vulgatum Zheng Yuefang and Liu Xuexian in Liu Zhili et al., 1992, p.64–65, pl.13, figs.10–13. Holotype: Liu Zhili et al., 1992, pl.13, fig.13. Age: Early Tertiary.
Parent: Cordosphaeridium