Bivalvia | Unionoida | Unionoidea | Unionidae | Ptychorhynchoideus guembeli nominal species Ptychorhynchoideus gümbeli Modell, 1931
Modell, 1931, Palaeontogr. 75: 72, pl. 13, fig. 12; pl. 14, fig. 15g.
= Ptychorhynchoideus guembeli Taxonomic Opinions
= Ptychorhynchoideus gümbeli Modell, 1931 — Haas, 1969
= Ptychorhynchoideus gümbeli Modell — Modell, 1943
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