Sphenophytes, pteridosperms and possible cycads from the Wuchiapingian (Lopingian, Permian) of Bletterbach (Dolomites, Northern Italy)
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H. Kerp | T. Fischer | E. Kustatscher | J. V. K. Cittert | Kathleen Bauer | R. Butzmann | B. Meller | Rainer Butzmann