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This relatively complete skull of an amphibian was excavated from Mid-Triassic layers of the Transantarctic Mountains, in Antarctica. It's fascinating to see that this large landmass mostly covered in ice contains a fossil record indicative of very different conditions than the present glacial environment. Specimen, about half meter in size, on display at The Chicago Field Museum of Natural History.
Fossil of frogs are not particularly common, but the ones we find tend to be preserved in articulation. This is a specimen of a Cretaceous neobatrachian frog from the Crato Formation of the Araripe Basin, Brazil, on display at the Paleontological Museum in Santana do Cariri. Few cm in size.