Ancient lizard glided on stretched skin

An ancient arboreal lizard coasted through the air using a winglike membrane stretched across elongated ribs, a new fossil reveals. Dubbed Xianglong zhaoi, the gliding lizard lived during the Early Cretaceous period, about 150 million years ago. The specimen, detailed Monday in the Proceedings of the National Academy of Sciences, is about 6 inches (15.5 centimeters) long, and its immature features suggest it died at a young age. The fossil, described by Xing Xu of Shenyang Normal University in China and his colleagues, was discovered in northeastern China's Liaoning Province, a site that has yielded a treasure trove of feathered dinosaurs and early bird remains in recent years.