Two lizard-like creatures crossed tracks 355 million years ago. Today, their footprints yield major discovery
Two lizard-like creatures crossed tracks 355 million years ago. Today, their footprints yield major discovery

UPPSALA/ ADELAIDE: (May 16) The emergence of four-legged animals known as tetrapods was a key step in the evolution of many species today – including humans.
Our new discovery, published today in Nature, details ancient fossil footprints found in Australia that upend the early evolution timeline of all tetrapods. It also suggests major parts of the story could have played out in the southern supercontinent of Gondwana.
This fossil trackway whispers that we have been looking for the origin of modern tetrapods in the wrong time, and perhaps the wrong place.