99-million-year-old frogs' fossils found encased in amber

A set of four tropical frogs that lived alongside the dinosaurs 99 million years ago have been discovered from amber lumps dating back to the Cretaceous period in Myanmar. This makes them the world's oldest rainforest frogs ever discovered by mankind. It included one skeleton of a frog complete enough for scientists to identify a new species 'Electrorana limoae'.