financially supported by the National Natural Science Foundation of China (no.41372028);Founds for Paleontology Fieldwork and Fossil Preparation,CAS to SQH and Canadian Museum of Nature (#RC09) to XCW~~
supported by grants from the Ministry of Science and Technology of China ( 2012CD822000);China Geological Survey ( 121202114026801);Canadian Museum of Nature ( RS34);National Science Foundation ( NSC-100-2116-M178-003)~~
supported bythe grants from the National Natural Science Foundation of China(#40872019) to SQH;fromthe Major Basic Research Projects(#2006CB806400) of the Ministry of Science and Technologyof China to SQH,WXC and LC;from the Canadian Museum of Nature(R34) to WXC;from the National Natural Science Foundation(#40772015,40121202) of China;theCAS/SAFEA International Partnership Program for Creative Research Teams to LC and WXC~~