Hystrichosphaeridium langii
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"langii" Wall, 1965a, p.165, pl.6, figs.9-11; pl.9, fig.9. Emendations: Morbey, 1975, p.41-42, as Hystrichosphaeridium langii; Below, 1987a, p.70-71, as Beaumontella langii. Holotype: Wall, 1965a, pl.6, fig.9; pl.9, fig.9; Fensome et al., 1995, figs.1-2 - p.1595. NOW Beaumontella. Originally Hystrichosphaeridium, subsequently Polysphaeridium?, thirdly Dapsilidinium?, fourthly (and now) Beaumontella. Age: Hettangian-Early Sinemurian.
Parent: Hystrichosphaeridium