Hystrichosphaeridium caulleryi
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"caulleryi" Deflandre, 1939a, p.189, pl.11, figs.2–3. Emendation: Stancliffe and Sarjeant, 1990, p.200, as Adnatosphaeridium caulleryi. Holotype: Deflandre, 1939a, pl.11, fig.2; Stancliffe and Sarjeant, 1990, pl.1, figs.3,5; Fauconnier and Masure, 2004, pl.1, figs.7–8. NOW Adnatosphaeridium. Originally Hystrichosphaeridium, subsequently Cannosphaeropsis, thirdly (and now) Adnatosphaeridium, fourthly Polystephanephorus. Age: early Oxfordian.
Parent: Hystrichosphaeridium