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A Possible Long-tailed Bird with a Pygostyle from the Late Mesozoic Yixian Formation, Western Liaoning, China

Acta Geologica Sinica(English Edition) 2005年第1期79卷 7-10页

作者： L Junchang1 and HOU Lianhai2 1 institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037 2 institute of vertebrate paleontology and paleoanthropology, Chinese Academy of Sciences, Beijing 100044 Department of Biology, Capital Normal University, Beijing 100037 Chinese Acad Geol Sci Inst Geol Beijing 100037 Peoples R China Chinese Acad Sci Inst Vertebrate Paleontol & Paleoanthropol Beijing 100044 Peoples R China Capital Normal Univ Dept Biol Beijing 100037 Peoples R China

An incomplete caudal vertebral series (IVPP V11309) from the Yixian Formation of late Mesozoic, Jianshangou area of Beipiao, western Liaoning Province, may represent a new bird. The tail is composed of at least 12 free caudal vertebrae and the most distal 5 caudal vertebrae co-ossified into a pygostyle. The pygostyle is plate-like and slightly curved dorsally. The anterior free caudals are amphiplatyan. The anterior caudal surfaces of the last three free caudals are concave, but their posterior articular surfaces are convex. The pygostyle is regarded as the first appeared flight apparatus during the evolutionary process from Archaeopteryx to neornithes. The pygostyle appeared in most early fossil birds and almost all the modern birds. Although their morphologies are different, they are basically formed by at least four last caudal vertebrae. The specimen V11309 is regarded as a bird rather than a non-avian theropod dinosaur based on the following characters: short caudal vertebrae, numerous pits present on the surfaces of the centra and, a foramen present between the basal part of the fused neural spines, which is similar to that of Struthio camelus. The discoveries of pygostyles from the therizinosauroids and oviraptorosaurs may provide strong evidence for supporting the origin of birds from small theropod dinosaurs. The structure of the pygostyle in specimen V11309 is different from those of Beipiaosaurus (Therizinosauroid) and Nomingia (oviraptorosaur). The most parsimonious interpretation is that these pygostyle-like structures are independently acquired by Beipiaosaurus and Nomingia during their evolutionary process.

关键词： western Liaoning Yixian Formation late Mesozoic pygostyle

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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 Yuri 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 （ Yuliangze 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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Magnetochronology of Late Miocene Mammal Fauna in Xining Basin,NE Tibetan Plateau, China

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Acta Geologica Sinica(English Edition) 2018年第6期92卷 2067-2078页

作者： HAN Jian'en SHAO Zhaogang CHEN Qiguang XU Biao ZHANG Qianqian YU Jia MENG Qingwei ZHANG Xuefeng WANG Jin ZHU Dagang institute of Geomechanics Chinese Academy of Geological SciencesBeijing 100081China China University of Geosciences (Beijing) Beijing 100083China Chinese Academy of Geological Sciences Beijing 100037China Yellow River Conservancy Technical institute Kaifeng 475004HenanChina

The Xining basin is located in the northeastern margin of the Qinghai-Tibet Plateau. It is a rift basin formed in Mesozoic and Cenozoic and structurally belongs to the intersection of Kunlun and Qilian Mountains. Cenozoic fluvial and lacustrine sedimentary strata are continuous in the Xining basin, with a thickness of more than 800 m, completely recording the deformation uplifting, weathering and denudation history and climate change process of the northeastern plateau. Currently, early Miocene Xijia fauna, early Middle Miocene Danshuilu fauna and late Middle Miocene Diaogou fauna are discovered in the Xining basin, which provide an important basis for the stratigraphic correlation of the Cenozoic strata in the Xining basin. However, in the next few decades, there are no reports about the large mammal fossils in the Xining basin, especially about late Miocene fauna. The author discovered a large amount of mammal fossils in the Neogene sedimentary strata in Huzhu area, Xining basin. According to the identification results of the institute of vertebrate paleontology and paleoanthropology, Chinese Academy of Sciences, these fossils mainly included Hipparion dongxiangense, Chilotherium sp., Parelasmotherium sp., Stephanocemas sp. and Kubanochoerus sp. and their age was early Late Miocene. Since the discovery of this set of fossils directly filled the blank that there were no large mammal fossils in the Xining basin in Late Miocene, it was very important for studying the magnetic stratigraphic chronology of fossil-forming strata and establishing the paleomagnetic chronology scale plate of mammal fossils. In this paper, the paleomagnetic data of the fossil-forming stratigraphic profile, Banyan profile, were measured and the paleomagnetic records were collected through high density sampling, and finally the paleomagnetic polarity column of the profile was established. The results showed that five positive and five negative polarity segments were recorded in Banyan profile,

关键词： mammal fossils magnetic stratigraphy late Miocene Xining basin Qinghai-Tibet Plateau

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Oldest Asian Record of Snapping Shrimps(Malacostraca:Alpheidae)from the Kutch Basin,Western India and Associated Biota:Biostratigraphic,Paleoenvironmental and Paleoecological Significance

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Acta Geologica Sinica(English Edition) 2022年第6期96卷 1867-1883页

作者： Vivesh V.KAPUR Kamlesh KUMAR Pranav J.PANDYA Amit KGHOSH Arindam CHAKRABORTY Anupam SHARMA Gaurav CHAUHAN M.G.THAKKAR Birbal Sahni institute of Palaeosciences 53University RoadLucknow 226007India Department of Biology Shri R.R.Lalan CollegeBhujKachchh DistrictGujaratIndia institute of Earth Sciences Academia SinicaTaipeiTaiwan 11529China Department of Earth and Environmental Science K.S.K.V.Kachchh UniversityBhujKachchh DistrictGujaratIndia

The oldest Asian record of alpheid shrimps,assigned to genus Alpheus,based on snapping claw fingertips from the Miocene Khari Nadi Formation in the Kutch Basin,western India reported herein,extends the fossil record of the family Alpheidae from Asia by~22 million *** early Miocene(Aquitanian)age is estimated based on the associated assemblage of calcareous nannofossils,Sphenolithus disbelemnos,Cyclicargolithus floridanus,and Reticulofenestra *** co-occurring microbiota includes bony fish otolith remains,identified as“genus Gobiidarum”,isolated teeth of Dasyatis rays,Sphyrna sharks,and teleosts,ctenoid and placoid scales,ostracods,belonging to the genera Paractinocythereis,Alocopocythere,Ruggieria,Aglaiocypris,Bairdoppilata,and echinoid *** together,the microfossil assemblage and data from chemical analyses using Energy Dispersive Spectroscopy,X-Ray Diffraction and Wavelength Dispersive X-Ray Fluorescence of host and associated lithologies suggests prevalence of a shallow(neritic)to coastal marine(intertidal)depositional *** present investigation also provides the oldest fossil evidence on the co-occurrence of Alpheus and gobiids(based on otoliths)that strongly advocates that the mutualistic association between these animal groups had developed by the Aquitanian.

关键词： biostratigraphy Crustacea Caridea Elasmobranchs Gobiidae invertebrate and vertebrate paleontology nannofossils Oligocene-Miocene Indian subcontinent

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A new alvarezsaurid dinosaur from the Late cretaceous Qiupa Formation of Luanchuan,Henan Province,central China

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China Geology 2018年第1期1卷 28-35页

作者： Jun-chang Lu Li Xu Hua-li Chang Song-hai Jia Ji-ming Zhang Dian-song Gao Yi-yang Zhang Cheng-jun Zhang Fang Ding institute of Geology Chinese Academy of Geological SciencesBeijing 100037China Henan Geological Museum Zhengzhou 450016China College of Earth Sciences & Key Laboratory of Mineral Resources of Gansu Province Lanzhou UniversityLanzhou 730000China

An alvarezsaurid dinosaur skeleton was discovered from the Late Cretaceous Qiupa Formation of Luanchuan,Henan Province of eenttral *** represents a new alvarezsaurid dinosaur Qiupanykus zhangi *** ***.A phylogenetic analysis recovers Qiupanykus nested within the unresolved clade,which includes Asian and north American *** skeleton of the new specimen is preserved in association with *** eggshell morphologies show that these eggs belong to oviraptorid eggs,skeletal remains of which were discovered from the same *** alvarezsaurid skeleton associated with eggshell fragments may indicate that these eggs were broken by the strong thumb-claws of the former and that alvarezsaurid dinosaurs may be egg-eaters.

关键词： vertebrate paleontology Alvarezsaurid dinosaur Qiupanykus Late Cretaceous Central China

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中国现代花粉数据集

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植物生态学报 2021年第7期45卷 799-808页

作者：陈海燕徐德宇廖梦娜李凯倪健曹现勇程波郝秀东孔昭宸李升峰李小强刘光琇刘平妹刘兴起孙湘君唐领余魏海成许清海阎顺羊向东杨振京于革张芸张志勇赵克良郑卓 Ulrike HERZSCHUH 浙江师范大学化学与生命科学学院浙江金华321004 浙江金华山亚热带森林生态系统野外科学观测研究站浙江金华321004 中国科学院青藏高原研究所青藏高原地球系统科学国家重点实验室北京100101 华中师范大学城市与环境科学学院武汉430079 南宁师范大学北部湾环境演变与资源利用教育部重点实验室南宁530001 中国科学院植物研究所北京100093 南京大学地理与海洋科学学院南京210023 中国科学院古脊椎动物与古人类研究所北京100044 中国科学院西北生态环境资源研究院兰州730000 台湾大学地质科学系中国台北106171 首都师范大学资源环境与旅游学院北京100048 同济大学海洋与地球科学学院上海200092 中国科学院南京地质古生物研究所南京210008 中国科学院青海盐湖研究所西宁810008 河北师范大学资源与环境科学学院石家庄050027 中国科学院新疆生态与地理研究所乌鲁木齐830011 中国科学院南京地理与湖泊研究所南京210008 中国地质科学院水文地质与环境地质研究所石家庄050061 中国科学院庐山植物园江西九江332900 中山大学地球科学与工程学院广州510275 Alfred Wegener institute Helmholtz Centre for Polar and Marine Research Potsdam 14473Germany

孢粉是重建古植被、古气候的重要基础数据。孢粉数据库对研究样点至区域和全球尺度上的古环境演变规律、古气候变化特征反演和古生物地球化学循环模拟等具有重要意义。该文收集整理了中国1960–2020年间发表和部分未发表的现代花粉数据... 详细信息

孢粉是重建古植被、古气候的重要基础数据。孢粉数据库对研究样点至区域和全球尺度上的古环境演变规律、古气候变化特征反演和古生物地球化学循环模拟等具有重要意义。该文收集整理了中国1960–2020年间发表和部分未发表的现代花粉数据记录,包括样品编号、采样位置、采样地经纬度和海拔高度、样品类型、数据来源、数据类型、周边植被信息、参考文献、花粉类群及其含量等信息;并对数据进行筛选和标准化等处理,由此整合为中国现代花粉数据集。该数据集由4 497个现代花粉采样点的数据信息组成,包括660个来自中国第四纪孢粉数据库数据,1 763个前期整理发表的数据和2 074个近期收集的数据,涵盖772个花粉类群。样品类型以土壤表层样品(3 332个)为主,苔藓样品以及湖泊、海洋表层样品等为辅,广泛分布于全国不同地理区域和植被类型中,其中以温带荒漠区域(24.91%)和亚热带常绿阔叶林区域(24.02%)最丰富,其次为温带草原区域(16.14%)和青藏高原高寒植被区域(15.83%)。数据按照来源可分为原始数据(58%)和数值化数据(42%);按照数据类型可分为原始统计粒数的样点(59%)和以花粉百分比表达的样点(41%)。半个多世纪以来,科研人员开展了大量的表层现代花粉取样和研究。本数据集虽然仅获取部分记录,但样点覆盖了我国绝大多数地区,可有效地用于古植被与古气候重建的现代孢粉与现代植被校验,并将为中国孢粉数据库的建立与更深入的孢粉研究提供数据支撑。

关键词：中国花粉数据库表层花粉现代植被

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