Rotosphaeropsis thule
From dinoflaj3
thule (Davey, 1982b, p.26–27, pl.8, figs.7–11) Riding and Davey, 1989, p.109. Emendation: Riding and Davey, 1989, p.109,112, as Rotosphaeropsis thule. Holotype: Davey, 1982b, pl.8, figs.8–11; Riding and Davey, 1989, pl.1, fig.4. Originally Cannosphaeropsis, subsequently (and now) Rotosphaeropsis. N.I.A. Age: latest Kimmeridgian–late Ryazanian.
