Hystrichosphaeridium mineralosum subsp. labiatum
From dinoflaj3
subsp. labiatum Varma and Dangwal, 1964, p.64–65, pl.1, figs.10–11. Holotype: Varma and Dangwal, 1964, pl.1, fig.10. Age: Eocene–Oligocene.
Parent: Hystrichosphaeridium mineralosum