1. College of Paleontology,Shenyang Normal University,Shenyang 110034,China;
2. Key-Lab of Evolution of Past Life in NE Asia,MONR,China,Shenyang 110034,China;
3. Shenyang Center of Geological Survey,China Geological Survey,Shenyang 110034,China;
4. International Center of Geoscience Research and Education in Northeast Asia ( Jilin University) ,Changchun 130026,China |