Canadian and U.S. paleontologists have announced the discovery of a new genus and species of ankylosaurid dinosaur, Ziapelta sanjuanensis. Life restoration of Ziapelta sanjuanensis. Image credit: © Sydney Mohr. Ankylosauridae (ankylosaurs, ankylosaurids) is a family of plant-eating dinosaurs with armored plates on their back. Ankylosaurs lived in what is now western North America, Europe and East Asia, between 122 and 66 million years ago. They were...