Leptodinium impenseum
From dinoflaj3
impenseum Yu Jingxian, 1982, p.242, pl.2, figs.10–11. Holotype: Yu Jingxian, 1982, pl.2, fig.10. Taxonomic junior synonym: Leptodinium quadrangulum, according to He Chengquan et al. (2009, p.107). Age: Late Jurassic–Early Cretaceous.
Parent: Leptodinium