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Late Cretaceous biota and the Cretaceous-Paleogene(K--Pg)Boundary in Jiayin of Heilongjiang,China

Global Geology 2011年第3期14卷 115-143页

作者： Sun G. Akhmetiev M. Markevich V. Ashraf A. R. Bugdaeva E. Godefroit P. bolotsky yu. Dong Z. M. Golovneva L. Yang H. X. Sun C. L. Sun Y. W. Quan C. Kodrul T. Kezina T. Johnson K. Nishida H Dilcher D. L. Harding I. Chen Y. J. Key-Lab for Evolution of Past Life MOEC(Jilin University) Changchun 130026 China College of Paleontology Shenyang Normal University Shenyang 110034 China Geological Institute of RAS Moscow 109017 Russia Institute of Biology and Soil Science FEB RAS Vladivostok 690022 Russia Institute of Geosciences University of Tuebingen Tuebingen 72074 Germany Royal Belgian Institute of Natural Sciences Dept. of Palaeontology B -1000 Bruxelles Belgium Amur Natural History Museum IGNE FEB RAS Blagoveschensk 675000 Russia IVPP Beijing 100044 China Research Center of Paleontology ＆ Stratigraphy Jilin University Changchun 130026 China Komarov Botanical Institute RAS St. -Petersburg 197376 Russia College of Geoexploration Science ＆ Technology Jilin University Changchun 130026 China Amur State University Blagoveshensk 675000 Russia Denver Museum o.f Natural Sciences Denver C0-90205 USA Chuo University Tokyo 112 Japan Indiana University Bloomington IN 47405 USA School of Ocean ＆ Geosciences University of Southampton Southampton S014 3ZH UK

An international cooperative study of the Late Cretaceous biota and non-marine strata including the Cretaceous-Paleogene(K--Pg) boundary in Jiayin near the Heilongjiang River,China during 2002-2010,is summarized in this paper. The strata includes the Upper Cretaceous Yong'ancun-,Taipinglinchang-,yu.iang-zi-,and Furao formations,and the Paleocence Wuyu. Formation consisting of Baoshantou Member and a Coalbearing Member. Seven palynological assemblages from Santonian to Paleocene are recognized,which is used for definition of the K--Pg boundary. Through the palynological analysis of three drilled boreholes (XHY-2005,2006,2008) in Xiaoheyan of western Jiayin,the K--Pg boundary is defined within 20. 00-20. 05 m in the borehole XHY-2006 (as a standard boundary) which is just between the top of Furao Formation (late Maasterichtian) and the base of Baishantou Member (early Danian) . These new research results are supported by paleo- magnetic,geochemical and other analyses,also. On the other hand,the presence of eight taxa of Maasterichtian dinosaurs (mostly hadrosaurids) have been recognized by the authors; and two mega-plant assemblages from the Yong'ancun Fm (Santonian) to Taipinglinchang Fm (Campanian) are confirmed. These research a-chievements indicate that the Upper Cretaceous-Paleocene in Jiayin can be well correlated to the strata in the neighboring Zeya-Bureja basin,Russia. The K--Pg boundary definited in Jiayin is the first well documented non-marine K--Pg boundary in China. Also the related paleoclimate,paleoenvironment and the mass extinctions in this area during the Cretaceous-Paleocene transition are also discussed.

关键词： Biota Late Cretaceous Paleogene K-Pg boundary Heilongjiang River, Jiayin

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The first occurrence of Troodon-morphotype tooth in Jiayin,Heilongjiang,Northeast China

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Global Geology 2022年第3期25卷 133-145页

作者： yu.Kaifeng WU Wenhao Ivan bolotsky ZHANG Xin SHEN Fengbin Pascal Godefroit College of Earth Sciences Jilin UniversityChangchun 130061China Research Centre of Palaeontology and Stratigraphy Jilin UniversityChangchun 130026China Institute of Geology and Nature Management FEB RASBlagoveschensk 675000Russia Jiayin Dinosaur National Geopark Jiayin 153200China Directorate Earth and History of Life Royal Belgian Institute of Natural Sciences1000 BrusselsBelgium

Abundant dinosaur remains have been discovered from the Heilongjiang/Amur area for over one hundred *** these discoveries,an isolated small theropod tooth recently found from the lower part of the yu.iangzi Formation of Jiayin displays highly distinctive morphological *** can be identified as a Troodon-morphotype tooth based on mesiodistal constriction at the base of the crown and large,hook-like denticles extending the entire length of both ***,Troodon remains were mainly found in North *** isolated Troodon teeth were also discovered in Blagoveschensk and Kundur localities on the left bank of the Heilongjiang *** specimen represents the first occurrence of Troodon-morphotype tooth in Jiayin,Heilongjiang,Northeast *** presence of this taxon in Jiayin,Blagoveschensk and Kundur localities in the Heilongjiang area provides new evidence for faunal exchange between North America and Asia through Cretaceous Beringia.

关键词： Heilongjiang yu.iangzi Formation Theropoda Troodon Maastrichtian

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Recent advances on study of hadrosaurid dinosaurs in Heilongjiang(Amur) River area between China and Russia

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Global Geology 2011年第3期14卷 160-191页

作者： Pascal Godefroit Pascaline Lauters Jimmy Van Itterbeeck yu.i L. bolotsky DONG Zhiming JIN Liyong WU Wenhao Ivan Y. bolotsky HAI Shulin yu.Tingxiang Royal Belgian Institute of Natural Sciences Department of Palaeontology B -I 000 Bruxelles Belgium Afdeling Historische Geologie Katholieke Universiteit Leuven B -3000 Leuven Belgium Amur Natural History Museum Institute of Geology and Nature Exploration FEB RAS 675000 BlagoveschenskAmurskaya Oblast＇ Russia IVPP Beijing 100044 / Research Center of Paleontology and Stratigraphy Jilin University Changchun 130026 China Museum of Jilin University Changchun 130026 China Research Center for Paleontology and Stratigraphy Jilin University Changchun 130061 China The Geological Museum of Heilongjiang Harbin 150036 China

Four main dinosaur-bearing sites have been investigated in latest Cretaceous deposits from the Amur/Heilongjiang Region ： Jiayin and Wulaga in China （ yu.iangze Formation）, Blagoveschensk and Kundur in Russia （Udurchukan Formation）. More than 90% of the bones discovered in these localities belong to hollow-crested lambeosaurine hadrosaurids： Charonosaurus fiayinensis at Jiayin, Amurosaurus riabinini at Blagoveschensk, Olorotitan arharensis at Kundur, and Sahaliyania elunchunorum at Wulaga. Flat-headed hadrosaurine hadrosaurids are much less numerous, but appear well diversified as well： Kerberosaurus manakini at Blagoveschensk, Wulagasaurus dongi at Wulaga, and a new genus at Kundur. Theropods are represented by shed teeth and isolated bones; isolated scutes and teeth discovered at Kundur are tentatively attributed to nodosaurids. Palynological studies suggest that these sites are probably synchronous with the Lancian＇ vertebrate localities of western North America, which represent the youngest dinosaur faunas in this area. However, the latest Cretaceous dinosaur assemblages are completely different in the Amur/Heilongjiang region （lambeosaurines abundant, ceratopsids absent） and in western North America （ceratopsids abundant, lainbeosaurines extremely rare or absent）. This probably reflects some kind of geographical barrier between both areas by Maastrichtian time rather than strong differences in palaeoecological conditions.

关键词： Heilongjiang Province Amur Region Late Cretaceous dinosaurs Hadrosauridae palaeobiogeography

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