
engths of just 32 to 46 cm. Researchers estimated a walking speed of 0.28 meters per second (about 1 km/h). By comparison, other trackways at the same sites indicate small theropods were moving at up
相关搜索
Photo: Courtesy of Xing LidaA team of international researchers has discovered the slowest theropod dinosaur tracks ever recorded in the Tuchengzi Formation in Xuanhua, North China's Hebei Province,
当前文章:http://vwpje.zubensai.cn/6vmp/dk1uucp.html
发布时间:00:23:51