Palaecysta sylibum

sylibum (Davey, 1979a, p.433–434,436, pl.48, figs.7–9, pl.50, figs.2–7,5–6,7–9) Williams and Fensome, 2016, p.140.  Holotype: Davey, 1979a, pl.50, fig.2; Fauconnier and Masure, 2004, pl.77, fig.3.  Originally Systematophora, subsequently (and now) Palaecysta.  This combination was not validly published in Chen (2013, p.293), since that author did not fully reference the basionym.  N.I.A.  Age: late Tithonian–Barremian.

Parent: Palaecysta