Description
According to the authors of its description Gerobatrachus combines features found later in frogs, such as a large space for a tympanic ear— an "ear drum"— and two ankle bones that are fused together, a typical salamander trait. Its backbone and teeth show features common to both frogs and salamanders, with a wide, lightly built skull similar to that of a frog. However, Marjanović and Laurin (2008) stated that the presence of some of the traits that were supposed to link Gerobatrachus with frogs and salamanders, such as pedicellate teeth or fusion of two ankle bones, cannot be confirmed in Gerobatrachus.
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