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New discoveries from the classic Quaternary mammalian fossil area of Yanjinggou,Chongqing,and their chronological explanations

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Chinese Science Bulletin 2013年第20期58卷 3780-3787页

作者： CHEN ShaoKun PANG LiBo HE CunDing WEI GuangBiao HUANG WanBo YUE ZongYing ZHANG XiaoHu ZHANG Hua QIN Li Chongqing Three Gorges Institute of Paleoanthropology China Three Gorges Museum Institute of Vertebrate paleontology and Paleoanthropology Chinese Academy of Sciences university of Chinese Academy of Sciences Wanzhou museum Institute of Cultural Relics in Henan Province Changzhou museum

Yanjinggou in Wanzhou District of Chongqing is one of the earliest reported and most famous Quaternary mammalian fossil areas in *** fauna from this area used to be taken as a benchmark for the biochronological comparison of Quaternary paleontology of South China,but the chronology of this fauna has many controversies for the lack of exact locational and stratigraphical *** present article,on the basis of recent investigations and discoveries,discusses and explains the distribution and biochronology of the mammalian faunas in the Yanjinggou *** newly discovered Dayakou fissure fauna,including Rhizomys troglodytes,Homotherium sp.,Panthera pardus,Stegodon orientalis,Dicerorhinus sumatrensis,Hesperotherium sinense,Sus sp.,Cervavitus fenqii,Cervus *** Muntiacus sp.,is correlated to the middle Early *** presence of Early Pleistocene mammalian fauna in the Yanjinggou area is therefore ***"Wanhsien fauna"or"Yenchingkou(=Yanjinggou)fauna"as a Mid-Late Pleistocene biostratigraphical datum should be *** Dayakou fauna and the Upper Cave fauna of Pingba,both in the Yanjinggou area,are correlated to the middle Early Pleistocene and the early Middle Pleistocene in age,respectively.

关键词：哺乳动物化石第四纪重庆市盐井哺乳动物群早更新世中国地区中晚更新世

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Diet breadth and mortality patterns from Laoya Cave： A primary profile of MIS 3/2 hunting strategies in the Yunnan-Guizhou Plateau, southwest China

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Science China Earth Sciences 2016年第8期59卷 1642-1651页

作者： WANG XiaoMin GUAN Ying CAI HuiYang Sandrine COSTAMAGNO ZHANG LiMin XU ChunHua GAO Xing Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing 100044 China university of Chinese Academy of Sciences Beijing 100049 China TRACES CNRS Toulouse 31058 France Guizhou Provincial museum Guiyang 550001 China

Laoya Cave is a long-term occupation site of Late Paleolithic humans in the Yunnan-Guizhou Plateau, southwest China, where abundant lithic, bone materials were recovered. Dating by the AMS technique showed a significant depositional process during marine isotope stage(MIS) 3/2. In this study, the species spectrum was presented from the perspective of zooarchaeology and the mortality profile of large Cervidae was examined to help increase our understanding of the subsistence strategy of local people dealing with climate and environmental changes. The main part of the diet was focused on large Cervidae, and the dominance of Ungulates indicates effective management of the cave and local fauna. On the other hand, the mortality profiles of large Cervidae varied correspondingly with climate change. The evidence indicates a specialized hunting strategy that was also flexible, depending on the prevailing climate and environment.

关键词： Cervidae Late Paleolithic Southwest China MIS 3 Zooarchaeology Survival strategy

The potential of vertebrate microfossils for marine to non-marine correlation in the Late Jurassic

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Progress in Natural Science:Materials International 2007年第6期17卷 655-663页

作者： Detlev Thies Alexander Mudroch Susan Turner Institute of Geology und paleontology University of HannoverD-30167 HannoverGermany Independent Palaeobiologist Bcklinplatz 4D-30177 HannoverGermany School of Geosciences Monash UniversityVictoria 3800AustraliaQueensland MuseumGeology/Palaeontology122 Gerler RoadHendraQueensland 4011Australia

Fish (cartilaginous: elasmobranch and bony: osteichthyan actinopterygian) and reptile (crocodile) microfossils comprising scales and teeth have been examined from a series of limestone samples in the Upper Jurassic of France and Germany to gauge the possibilities of using them for correlation between fully marine and hypo-or hyper-saline (non-marine) deposits.

关键词： Upper Jurassic Kimmeridgian chondrichthyans actinopterygians crocodilians microfossils biostratigraphy

Petrochemistry and Zircon U-Pb Geochronology of Felsic Xenoliths in Late Cenozoic Gem-Related Basalt from Bo Phloi Gem Field, Kanchanaburi, Western Thailand

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Journal of Earth Science 2021年第4期32卷 1035-1052页

作者： Alongkot Fanka Chidchanok Kasiban Toshiaki Tsunogae Yukiyasu Tsutsumi Chakkaphan Sutthirat Department of Geology Faculty of ScienceChulalongkorn UniversityPathumwanBangkok 10330Thailand Graduate School of Life and Environmental Sciences University of TsukubaIbaraki 305-8572Japan Department of Geology University of JohannesburgAuckland Park 2006South Africa Department of Geology and paleontology National Museum of Nature and ScienceIbaraki 305-0005Japan

The Cenozoic basalts exposed in Bo Phloi Gem Field,Kanchanaburi Province,western Thailand are a host to different gem materials(e.g.,sapphire,black spinel,black pyroxene and zircon)as well as other xenocrysts and xenoliths from the deep-seated formations onto the earth ***,only felsic xenoliths have never been investigated and reported in detail though they are in fact significant evidence of ancient tectonic processes of this *** this study,the felsic xenoliths were sampled and classified,on the basis of petrochemistry,into granite,syenogranite,and ***,they contain similar mineral assemblages including essentials of quartz,K-feldspar,and plagioclase with different proportions and accessories of biotite,zircon,and opaque ***,large phenocrysts of K-feldspar and plagioclase commonly present as a primary texture which are frequently corroded and replaced by‘sieved texture’with secondary cumulative fringe of tiny feldspar and *** secondary textures clearly indicate quenching after re-heating during transportation by basaltic *** analyses indicate that the alkaline and peraluminous magma show enrichment of Rb and depletion of Ba,Nb,Ta,Ti with steep slope of LREE/HREE enrichment *** evidences suggest low-degree partial melting of crustal materials related to the collisional S-type granite *** addition,U-Pb dating of zircon from a felsic xenolith yields 211.6±1.3 Ma comparable to the Late Triassic magmatism of the central belt granite in this region which is resulted from the collision between Sibumasu and Indochina terranes.

关键词： basalt granite sapphire tectonic Thailand xenolith

The First Mesozoic Heterodactyl Bird from China

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Acta Geologica Sinica(English Edition) 2006年第5期80卷 631-635页

作者： ZHANG Zihui HOU Lianhai HASEGAWA Yoshikasu Jingmai O＇CONNOR Larry D. MARTIN Luis M. CHIAPPE College of Life Sciences Capital Normal University Beijing 100037 China Institute of Vertebrate paleontology and Paleoanthropology Chinese Academy of Science P.O. Box 643 Beijing 100044 China Gunma museum of Natural History 1674-1 Kamikuroiwa Tomioka Gunma 370-2345 Japan Natural History museum of Los Angeles County 900 Exposition Boulevard Los Angeles CA 90007 USA university of Southern california Los Angeles CA 90007 USA Natural History museum and the Department of Ecology and Evolutionary Biology University of Kansas Lawrence KS 66045 USA

Dalingheornis liweii gen. et sp. nov., a new enantiornithine bird was collected from the early Cretaceous Yixian Formation in northeastern China. It is the first record of a highly specialized heterodactyl foot in Mesozoic birds. The Y-shaped furcula with short hypocleidum is different from that of other enantiornithines. The minor metacarpal is robust and longer than the major metacarpal. A long bony tail composed of 20 caudal vertebrae with chevrons resembling those of dromaeosaurids and thus, highlighting again the evolutionary relationship between birds and non-avian theropods. Well-preserved alula feathers and a heterodactyl foot provide strong evidence for the arboreal habit of Dalingheornis.

关键词： Early Cretaceous heterodactyl enantiornithine Dalingheornis liweii China

Northeastern Asia humidification at the end of the Miocene drives the boost of mammalian dispersals from the Old to New World

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Journal of Palaeogeography 2023年第1期12卷 50-68页

作者： Qigao Jiangzuo Shi-Qi Wang Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space SciencesPeking UniversityBeijing 100871China Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100871China CAS Center for Excellence in Life and Paleoenvironment Beijing 100871China Division of paleontology American Museum of Natural HistoryNew YorkNY 10024-5102USA

Mammals have high dispersal ability,and many lineages can spread across the continents when a landbridge ***,we summarize the dispersal of mammals between the Old and New World at the end of the *** analysis suggested that the three phases of dispersal represented the largest dispersal tide during the Neogene,and the direction of dispersal is dominated by being from the Old to New *** from the components that crossed the dispersal corridor,the Arctic environment near the Beringia corridor in the first phase(~7.5 Ma)is a mixed environment,and in the second phase(~6.5 Ma)is an open environment,and in the third phase(~5.8 Ma and continue to the Pliocene)is a wooded(closed)environment.A clear trend of eastern Asian humidification driven by Asian monsoon and the global C4 grassland expansion explain this dispersal *** boost of mammalian dispersals is controlled by the heterogeneity of environmental changes in different continents.

关键词： Eastern asia North America Carnivora Dispersal Late miocene

Molecular phylogeny, morphology and life-history comparisons within Circus cyaneus reveal the presence of two distinct evolutionary lineages

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Chinese Birds 2016年第4期7卷 187-198页

作者： Graham J.Etherington Jason A.Mobley museum of Vertebrate Zoology 3101 Valley Life Science Building University of California Organisms and Ecosystems The Earlham Institute Norwich Research Park Aquasis Caucaia

Background: Circus cyaneus is a medium-sized bird of prey that is widely distributed across the Northern Hemisphere. There are two currently recognized forms, the Palearctic form C. c. cyaneus(Hen Harrier), and the Nearctic form C. c. hudsonius(Northern Harrier). The forms have recently been split by the British Ornithologists' Union but the American Ornithologists' Union and some other taxonomic committees have not yet made any change. Here we examine the phylogenetic relationship between the two forms using sequence data from multiple nuclear and mitochondrial genes and examine breeding biology, body size, morphology, dispersal and other ***: In order to fully compare cyaneus and hudsonius, we carried out a full literature review, measured museum skins and carried out phylogenetic analysis using a number of different mitochondrial genes and compare our findings to other recent ***: We find that these two allopatric taxa form reciprocally monophyletic groups, show substantial mt DNA sequence divergence, and further differ significantly with respect to body size, plumage characters, breeding biology, dispersal and other behavioral ***: Based on an array of consistently divergent characteristics, it is suggested that the two forms are best regarded as separate species, Hen Harrier(Circus cyaneus) and Northern Harrier(Circus hudsonius).

关键词： Circus cyaneus Circus hudsonius Hen Harrier Northern Harrier Phylogenetics Speciation Evolution

THE ORIGIN OF POSTCRANIAL SKELETAL PNEUMATICITY IN DINOSAURS

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THE ORIGIN OF POSTCRANIAL SKELETAL PNEUMATICITY IN DINOSAURS

Evidence of proteins, chromosomes and chemical markers of DNA in exceptionally preserved dinosaur cartilage

第十九届国际动物学大会

作者： Mathew J.Wedel university of california museum of paleontology 1101 Valley Life Sciences Building Berkeley CA 94720-4780 USA

＜正＞The sauropodomorph Thecodontosaurus caducus and theropod Coelophysis bauri are the earliest dinosaurs with postcranial skeletal pneumaticity. In both taxa, postcranial pneumatic features are confined to the cervical vertebrae. This distribution of pneumaticity in the skeleton is most consistent with pneumatization by diverticula of cervical air sacs similar to those of birds. Other hypotheses, including pneumatization by diverticula of the lungs, larynx and trachea, or cranial air spaces, are less well supported.

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National Science Review 2020年第4期7卷 815-822页

作者： Alida M.Bailleul Wenxia Zheng John R.Horner Brian K.Hall Casey M.Holliday Mary H.Schweitzer Key Laboratory of Vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences CAS Center for Excellence in Life and Paleoenvironment Department of Biological Sciences North Carolina State University Department of Geology University of Lund Honors Program Chapman University Department of Pathology and Anatomical Sciences University of Missouri North Carolina museum of Natural Sciences Department of Biology Dalhousie University

A histological ground-section from a duck-billed dinosaur nestling(Hypacrosaurus stebingeri) revealed microstructures morphologically consistent with nuclei and chromosomes in cells within calcified *** hypothesized that this exceptional cellular preservation extended to the molecular level and had molecular features in common with extant avian cartilage. Histochemical and immunological evidence supports in situ preservation of extracellular matrix components found in extant cartilage, including glycosaminoglycans and collagen type II. Furthermore, isolated Hypacrosaurus chondrocytes react positively with two DNA intercalating stains. Specific DNA staining is only observed inside the isolated cells, suggesting endogenous nuclear material survived fossilization. Our data support the hypothesis that calcified cartilage is preserved at the molecular level in this Mesozoic material, and suggest that remnants of once-living chondrocytes, including their DNA, may preserve for millions of years.

关键词： cartilage dinosaur nuclei chromosomes collagen Ⅱ DNA markers