Abstract
The excellently preserved toad fossil was found the Middle Miocene (Badenian) lower freshwater-brackish diatomite layers in Szurdokpüspöki, Mátra Mountains, northern Hungary. This is the first amphibian fossil of the locality. This specimen is the only toad skeleton from Hungary and possibly from the Miocene of Europe. The toothless premaxilla and maxilla denote the family Bufonidae and the ossification of the frontoparietal, prootic and exooccipital indicates the toad species Bufo viridis. The difference from other bufonid toads is the presence of a small bulge on the ventral side of the well-preserved right ilium; thus it is referred to as Bufo aff. viridis. The size of the bones of the fossil anura suggests it was probably a young specimen. Detailed taxonomic description is given