基金We are grateful to the government of Kazuo County （especially Bureau of Land and Resources, and Bureau of Public Security） for their effectively protecting these specimens and fossil site. More thanks are given to the Bureau of Land and Resources of Kazuo County for offering the specimens to study. This research was funded by the National Natural Science Foundation of China （Grant no. 41372026） and the China Geological Survey （Grant no. 1212011120139, 1212011120005） to Ji Shu-an, and by the Administration Bureau of Fossil Resource Protection of Liaoning Province （LNZC20130900206） to Zhang Lijun.