Synchrotron scanning reveals amphibious ecomorphology in a new clade of bird-like dinosaurs

The recently discovered theropod Halszkaraptor escuillei reveals a novel basal dromaeosaurid clade, and its adaptations that suggest a semi-aquatic predatory lifestyle add an additional ecomorphology to those developed by non-avian maniraptorans. A dinosaur discovered in the Cretaceous period of Mongolia belongs to a new subfamily of bird-like dinosaurs, which may have taken to water. Andrea Cau and colleagues describe Halszkaraptor, a small...