Hystrichokolpoma denticulatum
From dinoflaj3
denticulatum Matsuoka, 1974, p.330–331, pl.44, figs.3–5. Holotype: Matsuoka, 1974, pl.44, fig.3; Fauconnier and Masure, 2004, pl.38, fig.2. Age: early-middle Miocene.
Parent: Hystrichokolpoma