Neonorthidium perforatum
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*perforatum Marheinecke, 1992, p.117–118, pl.26, figs.12–14; text-fig.23. Holotype: Marheinecke, 1986, pl.22, figs.1–2,4, as Northidium perforatum (name not validly published); Marheinecke, 1992, pl.26, figs.12–14; text-fig.23. Originally Northidium (name not validly published), subsequently (and now) Neonorthidium. Contrary to the opinion of Lentin and Williams (1993, p.447), Williams et al. (1998, p.421) considered this name to be validly published. Age: late early–early late Maastrichtian.
Parent: Neonorthidium