Isthmocystis distincta
From dinoflaj3
*distincta Duxbury, 1979a, p.201, pl.1, figs.1–6; pl.2, fig.8; text-figs.3A–B,4. Holotype: Duxbury, 1979a, pl.1, figs.1–2; text-fig.4; Fensome et al., 1993a, figs.1–2,7 — p.1133. Age: Valanginian.
