Archaehierax sylvestris (ancient hawk of the forest) is a new fossil species discovered in 2016 in south Australia. It is an eagle species that roamed the Earth some 25 million years ago. Though it is smaller and leaner than the wedge-tailed eagle, it is the largest eagle to be found during this period.
The discovery of fossil is significant as eagles are the top predators and are always few in number and they are rarely preserved as fossils. The fossil was found on the shore of a dry lake called Lake Pinpa. During its time, the interior of Australia had green covers.