Escharisphaeridia rudis
From dinoflaj3
rudis Davies, 1983, p.28, pl.10, figs.7,10–18; text-fig.25. Emendation: Prauss, 1989, p.34. Holotype: Davies, 1983, pl.10, fig.13. Age: late Callovian–Valanginian.
Parent: Escharisphaeridia