Dr Nick Longrich from the University of Bath, UK, has described two new species of chasmosaurine dinosaurs that roamed the ‘lost island continent’ of Laramidia – a swampy, subtropical setting formed when a shallow sea flooded the central region of North America – during the Cretaceous, about 75 million years ago. Pentaceratops aquiloniua. Image credit: University of Bath. Western North America hosted a remarkable diversity of dinosaurs...
