Teleocrater: The crocodile-like creature that came before dinosaurs
13 April 2017 Last updated at 07:23 BST
Before there were dinosaurs, there was this weird crocodile-looking thing.
Animals with crocodile-like features walked the Earth around 245 million years ago, which is before dinosaurs appeared.
New fossils discovered by scientists in Tanzania, Africa, two years ago help show that the Teleocrater creature walked on four legs.
Watch Ricky's report.