The Jiayin area along the Heilongjiang River in Northeast China has attracted stratigraphic and sedimentological interests recently because the Cretaceous--Tertiary (K/T) boundary should be located in this non-marine ...The Jiayin area along the Heilongjiang River in Northeast China has attracted stratigraphic and sedimentological interests recently because the Cretaceous--Tertiary (K/T) boundary should be located in this non-marine succession.Dinosaur remains disappear suddenly at the upper part of the Maastrichtian,whereas plants gradually evolved throughout the succession.Analysis of sedimentary facies has been carried out and paleo-environments through Upper Cretaceous to lower Paleocene sections are reconstructed.Fluvial to lacustrine sedimentary environments are inferred from the facies.Several debris flow events have been identified,and it is in these deposits that the dinosaur fossils are concentrated.展开更多
Present article is on Russian Far East carnivorous dinosaur paleoecology.Described summary is based on detailed study and comparison of isolated shed teeth morphology.
基金supported by the fund for the Projects 30220130698 and 40842002 of NSFC,Chinathe Project 111 of China (Jilin University)
文摘The Jiayin area along the Heilongjiang River in Northeast China has attracted stratigraphic and sedimentological interests recently because the Cretaceous--Tertiary (K/T) boundary should be located in this non-marine succession.Dinosaur remains disappear suddenly at the upper part of the Maastrichtian,whereas plants gradually evolved throughout the succession.Analysis of sedimentary facies has been carried out and paleo-environments through Upper Cretaceous to lower Paleocene sections are reconstructed.Fluvial to lacustrine sedimentary environments are inferred from the facies.Several debris flow events have been identified,and it is in these deposits that the dinosaur fossils are concentrated.
基金supported by the Russian Foundation of Fundamental Research Grants No. 07-05-00168-а and No. 10-05-00151-аsupported by the Key-Lab for Evolution of Past Life and Environment in NE Asia, Ministry of Education, China (Jilin University)
文摘Present article is on Russian Far East carnivorous dinosaur paleoecology.Described summary is based on detailed study and comparison of isolated shed teeth morphology.
