Hystrichostrogylon sulcatum
From dinoflaj3
sulcatum Guerstein et al., 2004, p.332,336, figs.4a–f,5a–l,6a–c. Holotype: Guerstein et al., 2004, figs.4a–b,5a–c. Age: late Oligocene to early Miocene.
Parent: Hystrichostrogylon