Szives, O. (2008). Two new species of Constrictoceras nov. gen. (Ammonoidea) from the Early Cretaceous (Aptian) of Hungary. Geobios (Villeurbanne), 41 (2), 297-305
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Szives, O.
2008
Two new species of Constrictoceras nov. gen. (Ammonoidea) from the Early Cretaceous (Aptian) of Hungary.