A report in the journal Nature estimates that the amniote tracks date to between 350 million and 359 million years ago.

Paleontologists have discovered that a three-eyed sea moth predator lived on Earth half a billion years ago with evidence found in one of the most fossil-rich areas of the world.

Meet Mosura fentoni, a bizarre 506-million-year-old "sea-moth" with three eyes, claws, and an abdomen full of gills.