The creature would have been the size of a "squashed beach ball" and weighed about 4kg (9lb), the researchers said. They added that the fossil, nicknamed Beelzebufo or "frog from hell", was "strikingly different" from present-day frogs found on the island nation.
The researchers are puzzled as to how it got where it did but it is suggested that a land bridge at Antarctica (which was warmer than now) would have provided the conduit. Here is the image of what the frog probably looked like from National Geographic and how it compares to a modern frog.
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