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. 2019 Mar 5;827:31–124. doi: 10.3897/zookeys.827.31365

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Frank P. Wesselingh, Thomas A. Neubauer, Vitaliy V. Anistratenko, Maxim V. Vinarski, Tamara Yanina, Jan Johan ter Poorten, Pavel Kijashko, Christian Albrecht, Olga Yu. Anistratenko, Anouk D’Hont, Pavel Frolov, Alberto Martínez ándara, Arjan Gittenberger, Aleksandre Gogaladze, Mikhail Karpinsky, Matteo Lattuada, Luis Popa, Arthur F. Sands, Sabrina van de V lde, Justine Vandendorpe, Thomas Wilke

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Figure 4. — Lectotype Dreissenarostriformis versus D.grimmi. aD.rostriformis Deshayes, 1838. Lectotype. Pliocene, Crimea. Reproduced from Archambault-Guezou (1976, pl. 6, fig 2a-2c) b RGM.961901, D.grimmi (Andrusov, 1890). Caspian Sea offshore Aktau, Kazakhstan, sample KAZ17-21, depth 44.3 m. Scale bar: 1 cm.