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A Juvenile Specimen of Sauropodomorpha from the Lower Jurassic of China and a Brief Review of the Lufeng Sauropodomorph Fauna

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Acta Geologica Sinica(English Edition) 2021年第2期95卷 319-332页

作者： Claire PEYRE DE FABREGUES BI Shundong AI Tianyu XU Xing Centre for vertebrate Evolutionary Biology Institute of PalaeontologyYunnan UniversityKunming 650091China Department of Biology Indiana University of PennsylvaniaIndianaPA 15705USA Independent Researcher Kunming 650091China Key Laboratory of Evolutionary Systematics of vertebrates Institute of Vertebrate Paleontology&PaleoanthropologyChinese Academy of SciencesBeijing 100044China

An incomplete dinosaur skeleton,including a partial skull,recently discovered from the Lower Jurassic Lufeng Formation of Yunnan,China,is here *** from its small size,little anatomical evidence supports,a priori,the non-adult status of this new sauropodomorph specimen but osteohistological analyses suggest that it is a fast-growing *** specimen represents only the second occurrence of a juvenile non-sauropodan sauropodomorph in the Lufeng *** anatomy of the new specimen does not match that of other Lower Jurassic immature specimens;although cranial material is preserved,it does not display the diagnostic characters of early sauropodomorphs from the same horizon,namely Lufengosaurus,Yizhousaurus and *** phylogenetic analysis places the new specimen in a position relatively distant from other Chinese sauropodomorphs,and corroborates the anatomical evidence showing it is not referable to any known species already excavated in *** result is interpreted with caution considering that ontogeny affects phylogenetic reconstruction.A thorough comparison with adult forms,taking into account ontogenyrelated characters,suggests that this Lufeng juvenile might represent a previously unknown species of early sauropodomorph.

关键词： Sauropodomorpha juvenile faunal review Jurassic Lufeng Yunnan province

Biogenic silica contents of Lake Qinghai sediments and its environmental significance

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Frontiers of Earth science 2014年第4期8卷 573-581页

作者： Bin LIU Hai XU Jianghu LAN Enguo SHENG Shuai CHE Xinying ZHOU State Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi'an 710075 China University of Chinese Academy of sciences Beijing 100049 China Laboratory of Human Evolution and Archeological science Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing 100044 China

Changes in the levels ofbiogenic silica （BSi%） in lake sediments have been widely used in order to study lake productivity and palaeoclimatic changes. However, the provenance of biogenic silica （BSi） needs to be investigated for each lake, especially for large lakes, as does the relationship between levels of BSi and relevant environmental factors. In this study, we measured the percentage of BSi contained in lake sediments, river sediments, and surface soils within the Lake Qinghai catchment, and compared the quantities and shapes of diatoms and phytoliths before and after the extraction processes. The results suggest that BSi in lake sediments is primarily derived from endogenous diatoms; therefore, BSi levels can be used to reflect the changes in primary productivity within the lake. Further comparisons showed that on long-term timescales, the variations in BSi% are generally consistent with those in total organic carbon （TOC） and grain size, reflecting the dominant impacts of precipitation on primary productivity in Lake Qinghai. On short-term timescales, however, the relationship between BSi% and TOC and that between BSi% and grain size are not clear or stable. For example, BSi% sometimes covaried with grain size, but it was sometimes out of phase with or even inversely related to grain size. We speculate that both climate and environmental processes, such as the dilution effect, influence short-term BSi% and its related environmental significance. As a result, BSi% should be used selectively as an indicator of climatic changes on different time scales.

关键词： biogenic silica environmental significance,Lake Qinghai precipitation

Latest Neogene Paleoclimate Variation in Yunnan,Southwest China,Revealed by Fossil Leaf Physiognomy

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1268-1281页

作者： DAI Jing CHEN Weizhao HUANG Liang ZHANG Yi’nan School of Earth science Yunnan UniversityKunming 650500China Ministry of Natural Resources Key Laboratory of Sanjiang Metallogeny and Resources Exploration and Utilization Kunming 650051China Yunnan institute of Geological Survey Kunming 650216China institute of vertebrate paleontology and Paleoanthropology Chinese Academy of SciencesBeijing 100044China

Yunnan Province,located in the southeastern margin of the Tibetan Plateau,can provide important information on how climate change was influenced by global ***,its variation patterns in temperature and precipitation during the latest Neogene are not *** on the 357 specimens assigned to 31 morphotypes of plant fossils from the upper Pliocene Ciying Formation in Yiliang County,Yunnan Province,Southwest China,paleoclimate was estimated by Leaf Margin Analysis and Climate Leaf Analysis Multivariate *** to the present climate,the mean annual temperature and coldest month temperature have not changed significantly since the late Pliocene,whereas the warmest month temperature has decreased *** precipitation-related parameters have decreased,particularly winter *** with the climatic data of the same period in other areas of Yunnan,the western and eastern Yunnan has shown a similar pattern in temperature variation since the late Pliocene except for central Yunnan;whereas the variation in precipitation does not follow a common law except for a consistent decrease in winter *** study reinforced the fact that under the background of global cooling and intensified monsoon systems,different areas of Yunnan exhibit different climatic responses to these changes because of their topographic heterogeneities.

关键词： plant fossil paleoclimate reconstruction monsoon Pliocene Yunnan

Sinobaatar gen. nov.: First multituberculate from the Jehol Biota of Liaoning,Northeast China

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Chinese science Bulletin 2002年第11期47卷 933-938,970页

作者： HU Yaoming & WANG Yuanqinginstitute of vertebrate paleontology and Paleoanthropology, Chinese Academy of sciences, Beijing 10044, China American Museum of Natural History, New York, NY 10024, USA Biology Program (Ecology, Evolutionary Biology, and Behavio institute of vertebrate paleontology and Paleoanthropology Chinese Academy of Sciences Beijing China American Museum of Natural History New York USA Biology Program (Ecology Evolutionary Biology and Behavior) Graduate School and City College City University of New York USA

A multituberculate skeleton from the Lower Cretaceous Yixian Formation at Dawangzhangzi, Lingyuan City, Liaoning Province, Northeast China, provides new morphological information for early multituberculates. The specimen is the holotype of Sinobaatar lingyuanensis gen. et sp. nov. It has a narrow skull that lacks the superorbital crest or postorbital process. The dental formula is 3·?·5·2/1·0·3·2. The dental morphology, especially that of cheek teeth, of S. lingyuanensis is similar to that of Eobaatar, which places it in the family Eobaataridae. The postcranial skeleton of Sinobaatar is similar to that of other multituberculates. As in Holotheria, Metatarsal V of Sinobaatar articulates only with the cuboid and has no contact with the calcaneus, which probably represents the primitive condition of multituberculates. Nine carpals of Sinobaatar resemble those of Zhang-heotherium, except the centrale being larger than the trape-zoid. The dental features of Sinobaatar show again that eo-baatarids are

关键词： Lingyuan western Liaoning Yixian Formation Early Cretaceous Jehol Biota multituberculates Sinobaatar.

A new oospecies of Shixingoolithus(Shixingoolithus qianshanensis ***.)from the Qianshan Basin,Anhui Province,East China

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Journal of Palaeogeography 2022年第4期11卷 629-639页

作者： Qing He Zhong-Liang Chen Shu-Kang Zhang Ze-Wen Gui Ya-Ting Chen School of Resources and Environmental Engineering Anhui UniversityHefei 230601Anhui ProvinceChina State Key Laboratory of Paleobiology and Stratigraphy Nanjing Institute of Geology and PaleontologyChinese Academy of SciencesNanjing 210008Jiangsu ProvinceChina School of Resources and Environment Engineering Hefei University of TechnologyHefei 230009Anhui ProvinceChina Geological Survey of Anhui Province Hefei 230001Anhui ProvinceChina Key Laboratory of vertebrate Evolution and Human Origins of Chinese Academy of sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China

Here we describe two newly discovered dinosaur eggs from the Upper Cretaceous Chishan Formation in the Qianshan Basin,Anhui Province,East *** dinosaur eggs can be assigned to a new oospecies of Stalicoolithidae,Shixingoolithus qianshanensis,based on the following combined features:the larger size of eggs,the uniform eggshell microstructure in the radial section,the smaller height and the larger density of radial microstructures at the inner surface of the *** sections of *** show closely arranged columnar eggshell units forming relatively uniform and dense microstructure;some secondary eggshell units and numerous sub-circular radial microstructures appear separately in the middle and inner parts of the tangential sections,*** discovery of *** provides new fossil types of Stalicoolithidae and represents the first dinosaur relative record in the Qianshan Basin,which offer accurate paleontological evidence of Late Cretaceous-Early Paleocene stratigraphic classification in the Qianshan Basin,Anhui Province.

关键词： Dinosaur eggs Stalicoolithidae Shixingoolithus qianshanensis Upper Cretaceous Chishan Formation Qianshan Basin

Early agricultural development and environmental effects in the Neolithic Longdong basin(eastern Gansu)

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Chinese science Bulletin 2011年第8期56卷 762-771页

作者： ZHOU XinYing LI XiaoQiang ZHAO KeLiang DODSON John SUN Nan YANG Qing State Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi'an 710075 China Laboratory of Human Evolution and Archeological science Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing 100044 China Graduate University of Chinese Academy of sciences Beifing 100049 China institute for Environmental Research the Australian Nuclear Science and Technology Organization Sydney NSW 1001 Australia

Neolithic agricultural development and environmental effects in the Longdong area were reconstructed using a synthetic approach,investigating pollen,charcoal,and seed remains for two cultural layer sections and five flotation *** show that Neolithic agriculture in the Longdong area had a simple organization and was dominated by the production of common millet,especially in the early and middle Yangshao *** the late Yangshao age,Neolithic agriculture developed into a more complex structure,dominated by both common and foxtail millet and the cultivation of rice and *** production of foxtail millet gradually increased through the Neolithic period,reaching its highest point during the Qijia *** were first cultivated during the late Yangshao culture,approximately 5000 cal a *** production began no later than 4800 cal a BP,and continued to exist in the Qijia culture,approximately 4000 cal a *** production in Neolithic Longdong,specifically in the "Yuan" area of the loess plateau,developed as a shrub and grass dominated *** in the river valleys was partly covered with Picea,Tusga,and Quercus coniferous and broadleaf mixed *** activity during the Neolithic period caused an increase in farmland on the loess tableland and a decrease in the abundance of shrub and grassland in the Longdong *** farmlands were abandoned,vegetation recovered with Hippophae-,Rosaceae-,Ephedra-,and Leguminosae-dominated shrublands and Artemisia-dominated grasslands.

关键词：新石器时代农业发展陇东地区环境影响甘肃东部早期新石器时期盆地

Osteological evidence for predatory behavior of the giant percrocutid (Dinocrocuta gigantea) as an active hunter

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Chinese science Bulletin 2010年第17期55卷 1790-1794页

作者： DENG Tao TSENG Zhijie J Key Laboratory of Evolutionary Systematics of vertebrates Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing 100044 China Department of vertebrate paleontology Natural History Museum of Los Angeles County Los Angeles CA 90007 United States Integrative and Evolutionary Biology Program Department of Biological Sciences University of Southern California Los Angeles CA 90089 United States

We present osteological evidence that a rhinocerotid skull belonging to a female Chilotherium wimani was bitten by a giant percrocutid, Dinocrocuta gigantea. Aided by comparative evidence of black rhino (Diceros bicornis) predation by extant spotted hyenas Crocuta crocuta, we interpret the healed wound on the C. wimani female as an injury incurred by the late Miocene D. gigantea. The hunting paleoecology of the giant percrocutid D. gigantea has long been speculated, but thus far no clear evidence has been discovered to point to the predatory habits of this carnivore. The present specimen of C. wimani provides evidence to indicate that the giant percrocutid shared similarities in predatory behavior to the modern spotted hyena: it was an active hunter in spite of the specialized bone-cracking craniodental morphology which imparted superb capability for processing bone.

关键词：证据巨型行为猎人晚中新世肉食动物加工能力古生态

Cosmogenic nuclide burial dating of Liuwan Paleolithic site in the Luonan Basin, Central China

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Journal of Geographical sciences 2019年第3期29卷 406-416页

作者： WANG Kexin XU Xinghua SUN Xuefeng TU Hua ZENG Qiongxuan LU Yiming LU Huayu WANG Shejiang School of Geography and Ocean science Nanjing University BGEG School of Earth Sciences China University of Geosciences Key Laboratory of vertebrate Evolution and Human Origins of Chinese Academy of sciences Institute of Vertebrate Paleontology and Paleoanthropology CAS CAS Center for Excellence in life and Paleoenvironment

The Luonan Basin is a key region of early human settlement in Central China with more than 300 discovered Paleolithic sites. Artifact layer 1 of the Liuwan site was dated to approximately 0.6 million years (Ma) based on correlation with the well-dated loess-paleosol sequence of the central Chinese Loess Plateau. This study reassessed the age of the Liuwan artifact layer via an absolute dating method, namely, 26Al/10Be burial dating. We determined the burial age of artifact layer 1, which was most likely at least 0.60 ± 0.12 Ma (1ơ), using three simple burial ages. The new burial age confirmed the previous estimated age and provided a considerably accurate age range. Therefore, we suggest the use of the 26Al/10Be burial dating method in thin loess-covered Paleolithic sites around the Qinling Mountain Range is helpful to understand the early human behavior.

关键词： Luonan Basin loess Paleolithic artifact Middle Pleistocene Cosmogenic nuclides

Multispherical interactions and their effects on the Tibetan Plateau's earth system: a review of the recent researches

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National science Review 2015年第4期2卷 468-488页

作者： Tandong Yao Fuyuan Wu Lin Ding Jimin Sun Liping Zhu Shilong Piao Tao Deng Xijun Ni Hongbo Zheng Hua Ouyang Center for Excellence in Tibetan Earth sciences Chinese Academy of Sciences institute of Tibetan Plateau Research Chinese Academy of Sciences Cold and Arid Environment and Engineering institute Chinese Academy of Sciences institute of Geology and Geophysics Chinese Academy of Sciences Department of Ecology College of Urban and Environmental Sciences Peking University Key Laboratory of vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of Sciences School ofGeographical sciences Nanjing Normal University institute of Geographical sciences and Natural Resources Chinese Academy of Sciences

The Tibetan Plateau(TP) is a regional Earth system showing very strong interactions among its lithosphere, hydrosphere, cryosphere, biosphere, atmosphere, and anthrosphere. hese interactions manifest TP’s impact on surrounding regions and relect TP’s response to the global change. Quantifying the multispherical interactions is critically important to understand the TP environment. Our recent years researches including the ongoing program entitled ‘Tibetan Multi-Spheres Interactions and heir Resource-Environment Signiicance(TIMI)’, the completed program entitled. ‘Paleo-Altitudes of Tibetan Plateau and Environment(PATE)’, as well as the other relating projects have focused on multidisciplinary research approaches and emphasized on three major pathways: Eurasia-Indian plates collision on deep-Earth dynamics, uplit impact on Earth’s mantle–crust dynamics, and contemporary interface on land surface and atmospheric dynamics. Our researches have taken in situ measurement as priority and developed several platforms of data acquisition and analysis, including the platforms of water-phase transformations, and ecosystem observations. Our ield investigations have been conducted to obtain data about stratum, paleontology, paleoenvironment, genetic diferentiation of animals and plants. We have developed conceptual and mathematical models for crust uplit formation, paleoclimate, glacial melt,water–air interface lux, vegetation climate, and soil erosion. We have also assessed the anthropogenic impacts on environment. Our researches have achieved new and reliable redating of the mantle–crust interaction and initial formation of the TP, found the interaction between tectonics and uplit of the TP and resultant paleoaltitude acting as a spreading source; discovered the interaction between the westerlies and Indian monsoon acting as a control chain that dominates the TP’s contemporary environment. he scientiic results can play fundamental roles in supporting the TP’s resource explorati

关键词： Tibetan Plateau multispherical interactions efects