Diggin’ dinos

Enigmatic structures in Australian rocks may be the filled-in remains of world’s oldest dinosaur burrows

Three enigmatic structures embedded in 106-million-year-old Australian rocks may be the remains of dinosaur burrows that were filled in by an ancient flood, a new study suggests. If that’s true, these fossils represent the oldest known dinosaur burrows and the first found outside North America.

STONE HOMES Three structures embedded in 106-million-year-old sandstone (two shown) have been interpreted in a new study as dinosaur burrows filled in by ancient floods.