Hystrichosphaeridium mineralosum subsp. labiatum
From dinoflaj2
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
