Wilsonidium aechmophorum
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"?aechmophorum" (Benedek, 1972, p.41, pl.5, figs.7,11; text-fig.17) Lentin and Williams, 1976, p.139. Emendation: Benedek and Sarjeant, 1981, p.340-341, as Gerlachidium aechmophorum. Holotype: Benedek, 1972, pl.5, fig.7; text-fig.17; Benedek and Sarjeant, 1981, figs.7,9, nos.1-2; Fensome et al., 1993a, figs.1-2 - p.887. NOW Gerlachidium. Originally Lejeunia (generic name illegitimate), subsequently Wilsonidium?, thirdly Lejeunecysta, fourthly (and now) Gerlachidium. Questionable assignment: Lentin and Williams (1976, p.139). Age: mid-late Oligocene.
Parent: Wilsonidium