Kleithriasphaeridium perforatum
From dinoflaj3
perforatum (Firth, 1993, p.193,195, pl.2, figs.1–7) Fensome et al., 2009, p.42. Holotype: Firth, 1993, pl.2, figs.1–4. Originally Florentinia, subsequently (and now) Kleithriasphaeridium. Age: early–late Maastrichtian.
Parent: Kleithriasphaeridium