Rotosphaeropsis thule
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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.
