Occurrence of the peculiar ammonites Phlycticeras and Oecoptychius in the Callovian (Middle Jurassic) of the Villány Hills (South Hungary)

New fossil collections from two Callovian (Middle Jurassic) localities of the South Hungarian Villány Hills (Villány, Templom Hill Quarry and Siklós, Rózsa Quarry) include specimens of the rare ammonite genus Phlycticeras and the sporadic Oecoptychius. A review is given herein on the previously published and newly found Villány specimens. Dimorphism, as well as the palaeogeographical distribution of the genera, is also briefly discussed.