Palaeohystrichodinium cavispineum
From dinoflaj3
cavispineum Zheng Yuefang and Liu Xuexian in Liu Zhili et al., 1992, p.76, pl.7, fig.29; text-fig.6. Holotype: Liu Zhili et al., 1992, pl.7, fig.29; text-fig.6. Age: Early Tertiary.
Parent: Palaeohystrichodinium