Fossil of 2-million-year old frog found in Argentina: Researchers

Paleontologists claim to have discovered fossilised remains of a rare species of frog that lived two million years ago in Argentina. The remains consisted of a "very small humerus (arm bone) of a tiny amphibian, distinct from horned and tree frogs", a researcher said. The fossil was found 144 feet underground during the digging of a well in Argentina.