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Occurrences of Permian radiolarians in central and eastern Nei Mongol(Inner Mongolia) and their geological significance to the Northern china Orogen

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chinese Science Bulletin 2004年第24期49卷 2613-2619页

作者： SHANG Qinghua Nanjing institute of Geology and paleontology,chinese academy of sciences,Nanjing 210008,china institute of vertebrate paleontology and paleoanthropology,chinese academy of sciences,beijing 100044,china Nanjing institute of Geology and paleontology Chinese Academy of Sciences Nanjing China institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing China

The Zhesi (Jisu) Formation of the Middle Per- mian in Nei Mongol (Inner Mongolia) was commonly con- sidered to be a shallow marine sequence. Here I report the radiolarians found in the argillite bed of that formation in Zhesi and Xilinhot areas. This fact indicates a deep marine sedimentary facies persisted during the Middle Permian, and suggests that the ocean between the North china Block and Siberian Craton was not closed until the Late Guadalupian. The suture of this two blocks is probably extends along the Linxi ophiolite belt, south of the Hegenshan ophiolite belt.

关键词：造山带地质意义内蒙古放射虫二叠纪

Liaoxiornis delicatus *** ***.,the smallest Mesozoic bird

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chinese Science Bulletin 1999年第9期44卷 834-838页

作者： HOU Lianhai and CHEN Peiji institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences , beijing 100044, china Nanjing institute of Geology and paleontology, chinese academy of sciences , china institute of Vertebra paleontology und paleoanthropology Chinese Academy of Sciences Beijing China Nanjing Instittue of Gology and paleontology Chinese Academy of Sciences China

Recently, a very small and complete bird specimen was collected from the Confuciusornis-bearing Yixian Formation. This finding represents a new kind of Mesozoic bird, named Liaoxiornis delicatus. It is characterized by a short skull with teeth, a long neck and a very small sternum with only posterior process; the humeral head is not internally curved, and the hindlimbs are longer than the forelimbs. Liaoxiomis delicatus is not only much smaller than Confuciusornis, but also smaller than Cathayomis and other early Cretaceous birds. It is the smallest bird known from Mesozoic deposit. Liaoxiornis provides new evidence indicating that the early adaptive radiation of birds is complicated.

关键词： Mesozoic early bird evolution of birds.

Aepyosciurinae——a new subfamily of Sciuridae(Rodentia,Mammalia)from basal loess deposits at the northeastern border of Tibetan Plateau

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chinese Science Bulletin 2003年第7期48卷 691-695页

作者： WANG Banyue & QIU Zhanxiang institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences, beijing 100044, china institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing 100044 China

Aepyosciurinae, a new subfamily of Sciuridae, were found at the base of the early Pleistocene loess deposits in Dongxiang County, Gansu Province. Its unilaterally hyp-sodont and lophodont cheek teeth are unique among the sciurids so far known all over the world. Certain degree of similarity can be observed between the cheek teeth of the new subfamily and the Anomalurinae living in tropical and subtropical forests in central and western Africa. Aepyosci-uris orientalis gen. et sp. nov. might have lived in montaneous woodland or grassland and lived on harder leaves, barks, or even grass. This tends to show that the northeastern border area of the Tibetan Plateau had been lifted considerably high in early Pleistocene (ca. 2 Ma), with drier climate, becoming a suitable habitat for Aepyosciurus orientalis.

关键词：西藏高原松鼠亚科啮齿目哺乳纲早更新世黄土沉积物古动物分类学

Longgupo Hominoid Mandible Belongs to Ape

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人类学学报 2002年第S1期21卷 19-24页

作者： WU Xin zhi(institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences, beijing 100044, china)

The present author made comparisons between the mandibular fragment and teeth attached on it from longgupo,Wushan on one side,and the corresponding specimens of early \%Homo\% of East Africa,\%Homo erectus\% from Dmanisi and \%Lufengpithecus \% from Yuanmou on other *** results showed that the size of Wushan specimens are much smaller than those of early \%Homo\% of East Africa and Dmanisi mandible,and are concordant with that of \%Lufengpithecus \%from *** of the characters which have been used to attribute Wushan mandible to \%Homo \%by some scholars,are shared by both hominid and ape. Among these characters,bifurcation of the root of the premolar is one of the characters of \%Lufengpithecus\% and seldom seen in *** position of the anterior contact facet and the ratio of the length of talonid to that of the crown of Wushan premolar are characteristic in *** the ape fossils avaliable in china \%Lufengpithecus \% is the closest relative of Wushan *** they have ancestor\|descendant relation is waiting for more findings to prove.

关键词： Mandible Ape Longgupo Wushan

Earliest Asian discoglossid frog from western Liaoning

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chinese Science Bulletin 1999年第7期44卷 636-642页

作者： WANG Yuan and GAO Keqin institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences , beijing 100044, china Department of vertebrate paleontology, American Museum of Natural History, NY 10024, USA institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing China Department of Vatebrate paleontology American Museum of Natural History USA

Based on a superbly preserved skeleton, a new anuran taxon has been named and described from the Yixian Formation (Upper Jurassic/Lower Cretaceous), Liaoning Province,northeastern china. This discovery documents the first discoglossid fossil from china, the earliest record of the group in Asia, and the only second Mesozoic discoglossid known from fully articulated material in the world. The family Discoglossidae is widely perceived as a primitive anuran group, but has no definite fossils found in collaboration with their recent distribution in *** new discovery from Liaoning extends the temporal range of the group in Asia back at least 120 million years, and provides valuable fossil material for study of anatomical details of early discoglossids, as well as of historical distribution of this primitive anuran group.

关键词： Discoglossidae Anura Late Jurassic/Early Cretaceous western Liaoning systematics and biogeography.

Periodicity of Retzius lines in fossil Pongo from South china

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chinese Science Bulletin 2012年第7期57卷 790-794页

作者： HU Rong1,2,3, ZHAO LingXia1,2 & WU XinZhi2 1 Key Laboratory of Evolutionary Systematics of vertebrates, institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences, beijing 100044, china 2 Laboratory of Human Evolution, institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences, beijing 100044, china 3 Graduate University of chinese academy of sciences, beijing 100049, china Key Laboratory of Evolutionary Systematics of vertebrates Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing China Laboratory of Human Evolution Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing China Graduate University of chinese academy of sciences Beijing China

Periodicity of Retzius lines is a key factor in dental development. In this study, we examined the periodicity of Retzius lines in fossil Pongo from South china using polarized light microscope observation of dental ground sections. The periodicities all of the 15 teeth were 9 d. Comparisons of periodicity were made with extant primates, fossil apes and hominins. Periodicity of fossil Pongo from South china was relatively long but fell within the variation of extant Pongo, Gorilla and modern human, and longer than periodicity of Pan and other extant primates. Fossil Pongo from South china was similar to Lufengpithecus and Sivapithecus, shorter than Gigantopithecus and longer than European and African fossil apes and most early hominins in periodicity. Generally, the periodicities of Asian large-body fossil apes were longer than the periodicities of European and African large-body fossil apes in Miocene. Difference among species and trend of evolution in periodicity were analyzed and discussed. We found that periodicity might gradually increase from Proconsul in early Miocene to several fossil apes in Miocene and then Gigantopithecus in Pleistocene. In addition, this study made correlate analysis between periodicity and body mass respectively in males and females of six extant apes and five fossil apes, and found that periodicity positively correlated with body mass.

关键词：周期性变化中国南方大猩猩化石灵长类动物早中新世类人猿显微镜观察

A new iguanodontid (Jin-zhousaurus yangi *** ***.) from the Yixian Formation of western Liaoning,china

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chinese Science Bulletin 2001年第19期46卷 1669-1672页

作者： WANG Xiaolin & XU Xing1. institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences, beijing 100044, china 2. College of Earth sciences and Resources, china University of Geo-sciences, beijing 100083, china institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing China College of Earth sciences and Resources China University of Geosciences Beijing China

A new iguanodontid, Jinzhousaurus yangi gen. et sp. nov., is erected based on the cranial and dental morphology of a specimen from the Yixian Formation of western Liaoning. Although a few primitive characteristics remain, Jinzhousaurus yangi display a number of characteristics similar to those seen in derived iguanodontids. Other interesting characteristics include the absence of antorbital fenestra and the frontal excluded from the participation in orbit, which are closer to the condition in hadrosaurids. The unusual combination of the characteristics provides important data for assessing morphological evolution toward hadrosaurs. The new discovery also represents the first reported large-sized dinosaur from Jehol fauna in western Liaoning, and increases the diversity of this famous fauna. Furthermore, the discovery of a derived iguanodontid from the Yixian Formation provides further evidence supporting a Cretaceous age of the Jehol fauna, which is consistent with an isotopic age.

关键词： Western Liaoning Lower Cretaceous Yixian Formation Jehol Biota Iguanodontid

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

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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 paleoanthropology, chinese academy of sciences, beijing 100044, china State Key Laboratory of Pattern Recognition, institute of Automation, chinese academy of sciences, beijing 100080, china Nanjing Provincial Museum, Nanjing 210016, china Radiology Department, Renmin Hospital, Peking University, beijing 100044, china) institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing 100044 China State Key Laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing 100080 China Nanjing Provincial Museum Nanjing 210016 China Radiology Department Renmin Hospital Peking University Beijing 100044 China

The development of computer tomography and image processing has made it possible to establish virtual 3D reconstruction and non-invasive dissection of fossil specimens. We used these methods to reconstruct a virtual 3D 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 3D 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 3D reconstruction cheetah skull early Pleistocene Tangshan Nanjing.

A new pterosaur (Pterodactyloidea, Tapejaridae) from the Early Cretaceous Jiufotang Formation of western Liaoning, china and its implications for biostratigraphy

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chinese Science Bulletin 2003年第1期48卷 16-23页

作者： WANG Xiaolin & ZHOU Zhonghe institute of vertebrate paleontology and paleoanthropology, chinese academy of sciences, beijing 100044, china Correspondence should be addressed to Wang Xiaolin (e-mail: xlinwang @***) institute of vertebrate paleontology and paleoanthropology Chinese Academy of Sciences Beijing 100044 China

In this article we describe a new and excep-tionally well-preserved pterodactyloid pterosaur, Sinopterus dongi gen. et sp. nov. from the Jiufotang Formation in west-ern Liaoning Province of northeast china. The new species is referred to the family Tapejaridae, representing its first re-cord outside Brazil. It also represents the earliest occurrence as well as the most complete skeleton of the family. Some revisions are made about the family according to the mor-phological observations of the postcranial bones of Sinop-terus. Two pterosaur assemblages appear to have existed in the Jehol Group, represented by the lower Yixian Formation and upper Jiufotang Formation, respectively. The lower pterosaur assemblage shows some resemblance to that of the Late Jurassic in Solnhofen (Tithonian) by sharing members of the Pterodactylidae and Anurognathidae. The upper one shows more resemblance to that of the Early Cretaceous Santana Formation (Aptian/Albian) by comprising only pterodactyloids such as the Tapejaridae. The age of the Yixian Formation is younger than that of the Solnhofen lithographic limestone, and the age of the Jiufotang Forma-tion (Aptian) is slightly older than the Santana Formation.

关键词：辽西朝阳热河组生物地层白垩纪翼龙化石