Cyclonephelium eisenackii
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"eisenackii" Davey, 1969a, p.170, pl.8, figs.3–4; pl.9, fig.4; text-figs.16a–b. Holotype: Davey, 1969a, pl.8, fig.4. NOW Pseudoceratium. Originally Cyclonephelium, subsequently Aptea, thirdly (and now) Pseudoceratium. Taxonomic senior synonym: Aptea (now Pseudoceratium) polymorpha, according to Cookson and Eisenack (1974, p.74) — however, Below (1981a, p.7) retained Cyclonephelium (as Aptea) eisenackii. Age: late Albian.
Parent: Cyclonephelium