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Ptychorhynchoideus Modell 1931
urn:lsid:organismnames.com:name:3284248
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Ptychorhynchoideus Modell 1931
Modell 1931. Die Najaden der oberbayerischen Cyrenenschichten. Palaeontographica Stuttgart, 75(3-6) 1931: pp. 63-80