Nigersaurus had a jaw that was wider than the rest of its skull, perfect for munching vegetation close to the ground. It had over 500 teeth, in multiple rows which could grow back every two weeks.
(Photo https://t.co/PaeqtGHlMs)
The Salish Wool Dog is an extinct breed of dog whose fur was used like a sheep to make clothes. It is the only prehistoric North American animal to be selectively bred.
Dinocephalosaurus was a long necked, aquatic protorosaur from the Triassic Period. They were ambush predators & hunted fish, violently thrashing their neck at prey when they got into the 'strike zone'.
(Credit: Prehistoric Wildlife)
Eogyrinus attheyi was one of the largest tetrapods of the Carboniferous, at 4.6 metres in length. Like the modern crocodile, it was an ambush predator.
(Credit dinoraul 2011)
Echovenator sandersi lived during the Oligocene epoch, around 27 million years ago. It had superb high-frequency hearing to locate prey.
(Credit A. Gennari)