Scientists identify duck-billed dinosaur
Restoration drawing of a Lambeosaurini dinosaur based on its fossils discovered in Sihui, Guangdong province. HAN ZHIXIN/FOR CHINA DAILY Scientists have confirmed that a set of skeletal fossils discovered in southern China belonged to duck-billed dinosaurs from over 70 million years ago, expanding the region's fossil record of these large, toothy creatures that likely migrated from North America. First author Wang Donghao, a doctoral student from the China University of Geosciences, noted that the research team had identified long and narrow neural spines on the fossil specimen, which is an extremely rare feature. They identified them as a more derived clade of Lambeosaurini dinosaurs that migrated from North America back to Asia via the Bering Strait, as their tall, narrow neural spines are a common trait among North American dinosaurs. "They represent the only evidence suggesting a potential migration of North American dinosaurs to the region in Late Cretaceous," co-author Xing Lida, a paleontologist from the university, told Xinhua on Monday, noting that the study will help people understand the ecological conditions across various regions before the mass extinction during the Late Cretaceous period.
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