Stiphrosphaeridium arbustum
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arbustum Davey, 1982b, p.17–18, pl.3, figs.1–4. Holotype: Davey, 1982b, pl.3, figs.1–2; Fauconnier and Masure, 2004, pl.73, figs.7–8. Age: late Ryazanian.
