Cannosphaeropsis thule
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"thule" Davey, 1982b, p.26–27, pl.8, figs.7–11. 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. NOW Rotosphaeropsis. Originally Cannosphaeropsis, subsequently (and now) Rotosphaeropsis. N.I.A. Age: latest Kimmeridgian–late Ryazanian.
Parent: Cannosphaeropsis