检索结果-南通市图书馆

Some problems on the studies of the late Pleistocene human evolution and formation of modern human populations

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2006年第12期16卷 1233-1241页

作者： liu Wu(Institute of vertebrate paleontology and {3., {3. academy of sciences, Beijing 100044, china) [a]Institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing China

For the past two decades, studies and debates on the modern human origins around the world have attracted attentions to the late Pleistocene human evolution and formation of modern human populations, and some controversial hypotheses and problems have been proposed. In the present paper, some problems on the late Pleistocene human evolution, and the formation and differentiations of modern human populations in china are studied with a brief description and comments on the research advances in this field.

关键词： late Pleistocene human evolution formation and differentiation of modern human population paleoanthropology.

Statistical analyses of metric data of hominoid teeth found in Yuanmou of china

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

chinese Science Bulletin 2000年第10期45卷 936-942页

作者： liu Wu, ZHENG Liang & JIANG Chu1. Institute of vertebrate paleontology and {3., {3. academy of sciences, Beijing 100044, china 2. Institute of Archaeology of Yunnan Province, Kunming 650118, china 3. Yuanmou Man Museum, Yuanmou 6513.0, china Institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing China Institute of Archaeology of Yunnan Province Kunming China Yuanmou Man Museum Yuanmou China

Mesial-distal and buccal-lingual dimensions of 1 266 hominoid teeth found in Yuanmou of Yunnan Province during the period of 1986 and 1988 have been measured. The statistical analyses of the metric data show that the tooth sizes of Yuanmou hominoid can be divided into big and small two types, and most tooth dimensions display obvious bimodalities in both histograms and 2 dimensional plots. The coefficients of variance (CV) reveal that the CVs of Yuanmou hominoid tooth sizes are within or close to the CV ranges of Lufengpithecus and extant great apes. The comparisons of tooth sizes and their proportions indicate that Yuanmou hominoids have close affinities with Lefeng and Kaiyuan hominoids, and have obvious differences with Gorilla, Chimpanzee and Orangutan. The authors believe that the hominoid fossils found in Yuanmou in the past 10 years represent a single species with highly sexual dimorphism in morphology and this species may have a close evolutionary relationship with the hominoids found in

关键词： human origin Yuanmou hominoid dental metrics statistical analyses.

3. virtual reconstruction of the Pleistocene cheetah skull from the Tangshan, Nanjing, china

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2007年第1期17卷 74-79页

作者： DONG Wei, HOU Xinwen, liu Jinyi, FANG Yingsan, JIN Changzhu and ZHU Qizhi ( Institute of vertebrate paleontology and {3., {3. academy of sciences, Beijing 100044, china State Key Laboratory of Pattern Recognition, Institute of Automation, {3. academy of sciences, Beijing 100080, china Nanjing Provincial Museum, Nanjing 210016, china Radiology Department, Renmin Hospital, Peking University, Beijing 100044, china) [a]Institute of vertebrate paleontology and Palecanthropology Chinese Academy of Sciences Beijing China [b]State Key Laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing China [c]Nanjing Provincial Museum Nanjing China [d]Radiology Department Renmin Hospital Peking University Beijing China

The development of computer tomography and image processing has made it possible to establish virtual 3. reconstruction and non-invasive dissection of fossil specimens. We used these methods to reconstruct a virtual 3. skull of a Pleistocene cheetah skull from the Tuozi cave, Tangshan, Nanjing, and virtually dissected it for anatomic studies, and measured the volumes of different parts of the endocranium. The endocranium of the cheetah skull has showed that its frontal sinus is beehive-like, the frontal lobe of cerebra is relatively large but the temporal lobe is relatively small, its cerebral sulcus and gyrus are more complicated than those of the domestic cat, similar to those of the domestic dog, but simpler than those of giant panda, pig, cattle and horse. The technology of virtual 3. reconstruction and non-invasive dissection of fossil specimens can extend the morphological study from the exterior to the interior, and it can also help to study fragile specimens and virtually backup rare and precious specimens.

关键词： CT imaging 3. reconstruction cheetah skull early Pleistocene Tangshan Nanjing.

Track Fading and Its Applications in Archaeology, Tectonics and Geothermal Chronology in china

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Earth Science 2013年第4期24卷 645-651页

作者：郭士伦袁万明陈宝流黄慰文刘顺生 Department of Nuclear Physics China Institute of Atomic Energy School of Earth sciences and Resourses China University of Geosciences Department of Radioisotopes China Institute of Atomic Energy Institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Guangzhou Institute of Geochemistry Chinese Academy of Sciences

Track fading is a basic phenomenon in track science and has been the source of informa- tion in geosciences. This article summarizes the knowledge of track fading and gives some examples of successful applications of track fading in archaeology, tectonics and geothermal chronology in china. The applications of track fading are classified into 5 modes：（1） mode of complete fading （annealing）; （2） mode of partial fading; （3. use of the dependence of track fading on time and temperature; （4） use of the differences of track fading between coexisting minerals; and （5） use of fading-reduced track length. Track fading mechanisms hints that scientists in geothermal chronology should adopt microprobes for quantitative elemental analysis to determine the detailed chemical compositions of each mineral grain or at least of the grains from each position of geological structures in order that one becomes well aware of the relation between the track fading behavior and chemical compositions of the mineral used.

关键词： track fading archaeology tectonics geothermal chronology.

A NEW FOSSIL BIRD FROM LOWER CRETACEOUS OF GANSU AND EARLY EVOLUTION OF BIRDS

在线全文

学校读者我要写书评

暂无评论

Science in china,Ser.B 1984年第12期27卷 1296-1303页

作者：侯连海刘智成 Institute of vertebrate paleontology and paleoanthropology Academia Sinica Beijing

The new order of aves, Gansuiformes, is established on the basis of the fossil specimens,including a tibiotarsus and a tarsometatarsus with four complete digits derived from the LowerCretaceous of Yumen, Gansu Province. The new bird probably represents the oldest one incontinental deposits. As Archaeopteryx is now considered as the ancestor of all landbirds,Gansus, the new bird is supposed to be the ancestor of shorebirds and waterbirds. Gansui-formes is similar to Charadriformes and some waterbirds in certain characters.

关键词： view A NEW FOSSIL BIRD FROM LOWER CRETACEOUS OF GANSU AND EARLY EVOLUTION OF BIRDS than

NEW FOSSIL CROCODILES FROM china

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

古脊椎动物与古人类 1964年第2期 199-208页

作者： YOUNG CHUNG-CHIEN (Institute of vertebrate paleontology and paleoanthropology,Academia Sinica)

Since the publication of my paper on fossil crocodiles in 1948,our knowledge con-cerning this group is considerably increased and many new forms have been described byYoung and Chow(1953.,Bohlin,(1953.,Sun(1958),Yeh(1958),Young(1961)and liu(1961).Recently,some tolerably well preserved crocodiles with rich remains of copro-lites have been discovered from Nanhsiung in *** is particularly in-teresting because it is most probably of paleocene in age,according to the mammalianremains found from the same *** addition a fragment of skull was found bythe Bureau of Geology of Inner Mongolia from Otok *** this territory,of lowerCretaceous,according to field *** are described in the present notes.

关键词：古人类脊椎动物鳄类新发现化石 NEW FOSSIL CROCODILES FROM china

A NEW COELACANTH FROM THE MARINE LOWER TRIASSIC OF ***,china

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

古脊椎动物与古人类 1964年第2期 213-214页

作者： liu HSIEN-T’ING (Institute of vertebrate paleontology and {3.,Academia Sinica)

A fossil collection from K’angtung,Fengshan,Kwangsi contains a great number ofmore complete specimens of marine invertebrates,mostly *** thesespecimens there is a piece of fish *** is very imperfect,consisting only of thecaudal *** no Coelacanths have as yet been found in china,therefore thediscovery of this kind of fish in the Lolou Triassic is of unusual interest.

关键词： than A NEW COELACANTH FROM THE MARINE LOWER TRIASSIC OF N.W.KWANGSI,china

Quaternary herbivore fauna in northeastern china: Evolution under climatic change

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

chinese Science Bulletin 1999年第S1期44卷 129-132页

作者： DONG Wei XU Qinqi JIN Changzhu liu Jinyi Institute of vertebrate paleontology and Paleothropology, {3. {3. of sciences. Beijing 100044

Large herbivorous mammals from 10 representative Quaternary localities in northeasternchina were studied. The evolution of these animals confirms Pei’s law and Bergmann’s rule. Of thethree global cold periods in the Quaternary, the first and second are not well recorded in the *** temperate period between these is well recorded. Records show that there was a sub-coldperiod (around 280 000 yr) during this temperate period. It remains to be confirmed whether thissub-cold period was limited to northeastern china. The third cold period is well recorded in theregion. The fauna in this third period were composed mostly of temperate forms, as well as typicalcold and pro-cold forms.

关键词： Northeastern china Quaternary Herbivore Paleoclimate

Late Oligocene-Miocene mid-latitude aridification and wind patterns in the Asian interior

在线全文

学校读者我要写书评

暂无评论

Late Oligocene-Miocene mid-latitude aridification and wind p...