New to Nature No 6: Pachyrhinosaurus lakustai

After nearly 25 years of excavations at Pipestone Creek, Alberta, Canada, scientists have discovered hundreds of remains of a previously unknown species of horned dinosaur they have named Pachyrhinosaurus lakustai. About 73 million years ago, a herd of juvenile and adult dinosaurs drowned in a flood, giving scientists a rare glimpse of behaviour and growth patterns. The species was named after Al Lakusta, a science teacher, who discovered the site in 1973. International Institute for Species Exploration, Arizona State University