Their appearance pushes back amniotes evolution by 35-40 million years. Between 359 and 350 million years ago, it rained. Lizard-like creatures crawled through the mud in what was once Gondwana (but ...

Canadian paleontologists recently discovered Mosura fentoni, a 506-million-year-old predator resembling a moth. The discovery offers insights into extinct radiodonts' anatomy.

The excavation near Loop 88 has already dug up a giant find — the tooth of a Giant Ground Sloth. Update: Here's what else was found in the excavation “We know we’ve found Giant ...