Oligosphaeridium complex subsp. brevispinum
From dinoflaj3
subsp. brevispinum Jain, 1977b, p.182, pl.1, fig.4. Holotype: Jain, 1977b, pl.1, fig.4; Fauconnier and Masure, 2004, pl.55, figs.10–11. Age: Albian.
Parent: Oligosphaeridium complex