Riculacysta perforata
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*perforata Stover, 1977, p.77–78, pl.2, figs.22–31. Holotype: Stover, 1977, pl.2, figs.22–24; Fensome et al., 1995, figs.1–3 — p.1651. Taxonomic junior synonym: Cyclonephelium semitectum, according to Köthe (1990, p.50) — however, Kirsch (1991, p.129) retained Cyclonephelium (as Riculacysta, now Glaphyrocysta) semitectum. Age: middle-late Oligocene.
