Ischyrodon

Extinct Pliosaurid marine reptile

Ischyrodon is a dubious genus of large, carnivorous marine reptile belonging to the Pliosauroidea, a clade of short-necked plesiosaurs and it is known from the Middle Jurassic (Callovian) of Wölflinswil, Switzerland. The type species is I. meriani, and was previously listed as a synonym of Liopleurodon ferox.

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