Polysphaeridium biformum
From dinoflaj3
biformum Islam, 1983b, p.342–343, pl.4, figs.3,6. Holotype: Islam, 1983b, pl.4, fig.6. Age: middle Eocene.
Parent: Polysphaeridium
biformum Islam, 1983b, p.342–343, pl.4, figs.3,6. Holotype: Islam, 1983b, pl.4, fig.6. Age: middle Eocene.
Parent: Polysphaeridium