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A restudy of Oryctocephalus indicus (Reed,1910)

Progress in Natural Science:Materials International 2006年第11期16卷 1177-1182页

作者： ZHAO Yuanlong~1**, YUAN Jinliang~2. PENG Shanchi~ 2.3 , YANG Xinglian~1, PENG Jin~1, LIN Jihpai~4, and GUO Qingjun~5(1. College of Resource and Environment of Guizhou University, Guiyang 550003, china 2. nanjing institute of geology and palaeontology, {2. academy of Sciences, nanjing 2.0008, china 3. state key laboratory of Papaeobiology and stratigraphy, nanjing institute of geology and palaeontology, nanjing 2.0008, china 4. Department of Geological Science, Ohio state University, Columbus, OH 432.0, USA 5. institute of Geochemistry, {2. academy of Sciences, Guiyang 550002. china) College of Resource and Environment of Guizhou University Guiyang 550003 China nanjing institute of {2. and palaeontology Chinese Academy of Sciences Nanjing 210008 China state key {2. of Papaeobiology and stratigraphy Nanjing Institute of Geology and Palaeontology Nanjing 210008 China Department of Geological Science Ohio State University Columbus OH 43210 United States institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

Restudy on morphology of Oryctocephalus indicus (Reed, 1910), based on specimens from Guizhou, china and Nevada USA, suggests that the subspecies regarded previously as Oryctocephalus indicus indicus (Reed, 1910), O. indicus latus Zhao et Yuan 2.02. and O. indicus kobayashi Saito, 1934, are synonymous, and Oryctocephalus americanus Sundberg et McCollum, 2.03 is a similar form of O. indicus. Oryctocephalus indicus is rediagnosed as having a glabella that is subconical in outline and tapering forward slightly; a thorax that comprises 12.segments, and a small pygidium that bears 2.3 axial rings with a terminal piece and a postaxial ridge. Oryctocephalus indicus is widely distributed in eastern Guizhou and ranges through a great interval of Kaili Formation. Its first appearance is almost identical with these events of trilobite extinction-recovery occurring at the end of the Early Cambrian, the alternation of acritach assemblages, the change of trace elements (REE) and stable isotopes (carbon) at the Wuliu-Zengjiaya section. As one of the key forms for defining the traditional Lower-Middle Cambrian boundary (the base of Cambrian Series 3 and Stage 5 in the new Cambrian chronstratigraphic standard), O. indicus has received detailed study and has more advantages than other species such as Ovatoryctocara granulata Tchernysheva, 1962.or Arthricocephalus chauveaui Bergeron, 1899.

关键词： Oryctocephalus indicus restudy Kaili Formation Cambrian Guizhou china.

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Lower Cretaceous angio-sperm leaf from Wuhe in Anhui,china

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chinese Science Bulletin 2003年第6期48卷 611-614页

作者： LI Haomin nanjing institute of geology and palaeontology, chinese {2. of Sciences, nanjing 2.0008, china nanjing institute of {2. and palaeontology Chinese Academy of Sciences Nanjing China

A new early angiosperm leaf species is reported from the Xinzhuang Formation in Wuhe County, Anhui Province. It is probably of Barremian or slightly later in geological age. The fossil leaf is small, no more than 0.6 cm both in length and in width. The leaf veins are well preserved and clearly visible under a low power microscope. Leaf ar-chitectural analysis shows that such a leaf should belong to the first leaf rank of Hickey, i.e. the most primitive one. There are no early angiosperm leaves published completely similar to ours. A new species name of Dicotylophyllum minutissimum sp. nov. is established for the present leaf fos-sils.

关键词：安徽下白垩统早期被子植物叶片结构叶片化石

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Male spike strobiles with Gnetum affinity from the Early Cretaceous in western Liaoning,Northeast china

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Journal of Systematics and Evolution 2009年第2期47卷 93-102页

作者： 1,2.huang-Xing GUO 3Jin-Geng SHA 4Li-Zeng BIAN 5Yin-Long QIU 1(Department of Palaeobotany and Palynology,nanjing institute of {2. and Paleontology,chinese academy of Sciences,nanjing 2.0008,china) 2.laboratory of Biodiversity and Biogeography,Kunming institute of Botany,chinese academy of Sciences,Kunming 6502.4,china) 3(state key laboratory of palaeobiology and stratigraphy,nanjing institute of {2. and palaeontology,chinese academy of Sciences,nanjing 2.0008,china) 4(College of Earth Sciences,nanjing University,nanjing 2.0093,china) 5(Department of Ecology & Evolutionary Biology,The University Herbarium,University of Michigan,Ann Arbor,MI 48109-1048,USA) Department of Palaeobotany and Palynology Nanjing Institute of Geology and Paleontology Chinese Academy of Sciences Nanjing 210008 China laboratory of Biodiversity and Biogeography Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China state key laboratory of palaeobiology and stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing 210008 China College of Earth Sciences Nanjing University Nanjing 210093 China Department of Ecology & Evolutionary Biology The University Herbarium University of Michigan Ann Arbor MI 48109–1048 USA

A fossil with Gnetum affinity was found in the Jianshangou Member(Barremian Age) of the Yixian Formation(Lower Cretaceous Epoch) of the Jehol Group in western Liaoning,northeastern *** single fossil specimen is represented by both elongate-cylindrical male spike strobiles which borne within a nodal bract of cauliflorous *** spike strobiles have apparent nodes,invisible internodes,and numerous verticillate involucral *** microsporangiate units within involucral collars are not *** male spike strobiles with verticillate involucral collars occur exclusively in Gnetum;hence,the fossil strobiles are attributed to a new taxon,Khitania columnispicata gen.& ***.,being closely related to *** general isotopic dating suggests an age of Barremian,ca.12.-12. million years(Myr) ago for the Jianshangou *** palaeoecological and palaeoclimatic inference based on the compositions of flora and fauna,and lithological characters of the fossil locality suggests that the fossil plants grew in a subtropical mesophytic forest and under a warmer *** remains of male spike strobiles are the first record of gnetalean *** documents the evolution of the distinct gnetoid morphology and indicates a wider range of distribution of Gnetaceae in the Early Cretaceous than present day.

关键词： biogeography Early Cretaceous Gnetum affinity male spike strobiles northeastern china

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Jianshangou Bed of the Yixian Formation in West Liaoning, china

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Science china Earth Sciences 2005年第3期48卷 298-312页

作者： CHEN Peiji1,2. WANG Qifei1, ZHANG Haichun1,2. CAO Meizhen1, LI Wenben1, WU Shunqing1 & SHEN Yanbin1 1. nanjing institute of {2. and Palaeontolgoy, chinese academy of Sciences, nanjing 2.0008, china 2. state key laboratory of palaeobiology and stratigraphy, nanjing 2.0008, china nanjing institute of {2. and Palaeontolgoy Chinese Academy of Sciences Nanjing China state key laboratory of palaeobiology and stratigraphy Nanjing China

The Jianshangou Bed is a set of fossil-bearing sedimentary interlayers of the basal volcano-sedimentary deposits of Yixian Formation in western Liaoning. It is rich in volcanic composition and consists of upper and lower grey-black shale, basal sandy conglomerate, top tuffaceous sandstone, middle massive silty mudstone and siltstone, as well as andesite, with a thickness of 2.—95 m. The Jianshangou Bed is famous all over the world for its bearing early birds, angiosperms and feathered dinosaurs, and it also yields bivalves, gastropods, con- chostracans, ostracods, shrimps, insects, fish, amphibians, primitive mammals and other reptiles. These fossils are typical representatives of the Late Mesozoic Jehol Biota from eastern Asia. The Chaomidianzi and Sihetun formations, proposed in recent years, are regarded as the junior synonyms of the Jianshangou Bed. The Jehol Biota is endemic to eastern Asia, however, it has a large geographic distribution, more than half of the European territory. Many species of the biota have close relationships with the late Jurassic European counterparts, e.g. both Confuciusornis and Archaeopteryx are primitive birds, Sinosauropteryx has a similar skeleton construction with Compsognathus, the ostracode assemblage from the Jianshangou Bed is close to that from the Purbeck Bed in England, and Aeschnidium occurs in both the Jianshangou Bed and Solnhofen of Germany. Based on the biostratigraphic correlation, the Jianshangou Bed is more probably late Tithonian in age. The latest zircon U-Pb dating of the Jianshangou Bed gives 12..2.Ma, and is close to the feldspar Ar/Ar dating of 12..6 Ma. A glauconite dating of 12. Ma was once got from England near the J/K boundary within the Purbeck Bed, so it is still problematic to place the J/K boundary at 130, 135, 137, 142.or 145.5 Ma in the International Stratigraphic Charts.

关键词： Yixian Formation, Jianshangou Bed, Jehol Biota, J/K Boundary.

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Anatomical variations of living and fossil Liquidambar leaves:A proxy for paleoenvironmental reconstruction

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Science china Earth Sciences 2011年第4期54卷 493-508页

作者： XIAO Liang 1,2.3,4,SUN BaiNian 1,2.,LI XiangChuan 1,REN WenXiu 1 &JIA Hui 1 1 key laboratory of Western{2.'s Environmental Systems of the Ministry of Education and College of Earth and Environment Science,Lanzhou University,Lanzhou 730000,china 2.state key laboratory of palaeobiology and stratigraphy,nanjing institute of geology and palaeontology,chinese academy of Sciences,nanjing {12.,china 3 College of Arts and Sciences,Bryant University,Smithfield RI 02.17,U.S.A. 4 key laboratory of Western{2.'s Mineral Resources and Geological Engineering of Ministry of Education,Chang’an University,Xi’an 710054,china key laboratory of Western{2.’s Environmental Systems of the Ministry of Education and College of Earth and Environment Science Lanzhou University Lanzhou China state key laboratory of palaeobiology and stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing China College of Arts and Sciences Bryant University Smithfield USA key laboratory of Western{2.’s Mineral Resources and Geological Engineering of Ministry of Education Chang’an University Xi’an China

Based on living ***,we have established that such epidermal cell properties as epidermal cell circumference(Circum.) ,undulation index(UI) ,epidermal cell area(EA) on both upper and lower epidermis and the corresponding epidermal cell density(ED) ,are suitable to differentiate between sun and shade ***,stomatal properties on the lower epidermis,including stomatal length(SL) ,stomatal pore length(PL) and the corresponding stomatal density(SD) ,are reliable parameters to identify sun/shade *** this anatomical approach was applied to 18 leaf remains of *** from the Miocene Xiannanshan Formation,Zhejiang Province(eastern china) ,and the fossil leaves were sorted into two groups,namely,sun and shade *** indicates that anatomical differences between sun and shade leaves found in living species could be used for fossil ***,the variation of UI between sun and shade morphotypes is larger on the upper epidermis as compared with the lower epidermis,showing that the UI on the upper epidermis is more sensitive to environmental *** addition,anatomical features are more variable in sun leaves than in shade leaves for both modern and fossil Liquidambar,suggesting sun leaves may be more sensitive to environmental *** leaves can then be a better indicator of paleoenvironmental ***,stomatal parameters of sun morphotype should be adopted on reconstructing paleoenvironments using Liquidambar leaf *** the other hand,the three-lobed fossil *** leaf assemblage in the Xiananshan Formation is represented by an almost similar percentage of sun and shade morphotypes(56%and 44%,respectively) ,which is attributed to the short transport before *** a result,identifying sun/shade morphotypes are very useful in reconstructing paleoenvironments based on fossil leaves of Liquidambar.

关键词： Liquidambar formosana Liquidambar miosinica leaf anatomy the Miocene Xiananshan Formation sun and shade leaves

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Discovery of agglutinated foraminifers from the Longzhaogou Group in eastern Heilongjiang Province

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Science china Earth Sciences 2004年第2期47卷 122-127页

作者： LI Gang & YU Shanmao1. state key {2. of Paleobiology stratigraphy, nanjing institute of geology and Paleontology, chinese academy of Sciences, nanjing 2.0008, china 2.108th Coal-prospecting Team of Geological Bureau, NE china and Inner Mongolia Coal Company, Jixi 158100, china Correspondence should be addressed to Li Gang (email: gangli@***) state key {2. of Paleobiology stratigraphy Nanjing Institute of Geology and Paleontology Chinese Academy of Sciences Nanjing China 108th Coal-prospecting Team of Geological Bureau NE China and Inner Mongolia Coal Company Jixi China

The low diversity agglutinated foraminifers are recovered from the Qihulin Formation of the Longzhaogou Group in eastern Heilongjiang, china. The foraminiferal fauna consists of 9 species of 5 genera. The common members are Cribrostomoides nonioninoides (Reuss), Haplophragmoides concavus (Chapman), H. gigas minor Nauss. Although the diagnostic zonal taxa are absent in the agglutinated fauna, according to the global stratigraphic distribution of the above-mentioned species, and the associated Pseudohaploceras ammonite fauna, the foraminiferal fauna may be of a Barremian-Aptian (Early Cretaceous) age.

关键词： Early Cretaceous, agglutinated foraminifers, Longzhaogou Group, eastern Heilongjiang, china.

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The great Ordovician radiation of marine life: Examples from South china

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Progress in Natural Science:Materials International 2008年第1期18卷 1-12页

作者： Renbin Zhan a,*, Jisuo Jin b, Yuandong Zhang a, Wenwei Yuan a a state key laboratory of palaeobiology and stratigraphy, nanjing institute of geology and palaeontology, {2. academy of Sciences, nanjing 2.0008, china b Department of Earth Sciences, University of Western Ontario, London Ont., Canada N6A 5B7 state key laboratory of palaeobiology and stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing 210008 China Department of Earth Sciences University of Western Ontario London Ont. Canada N6A 5B7

The Ordovician radiation is the earliest and most important biodiversification event in the evolution of the Paleozoic Evolutionary Fauna (PEF), when the basic framework of PEF was established. The radiation underwent a gradual, protracted process spanning more than 40 million years and was marked by several diversity maxima of the PEF. Case studies conducted on the Upper Yangtze Platform (South china Palaeoplate) showed that the Ordovician radiation was characterized by drastic increases in a- and b-diversity in various groups of organisms. During the radiation, brachiopods, trilobites, and graptolites of the PEF became more diverse to dominate over the Cambrian Evolutionary Fauna (CEF) in all marine environments. At either global or regional scales, however, the Ordovician radiation was highly heterogeneous in time and space, and the rate and pattern of radiation exhibited by difierent major fossil groups were also variable.

关键词： Ordovician radiation Paleozoic Evolutionary Fauna a-diversity b-diversity Upper Yangtze Platform

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A zooarchaeological study of bone assemblages from the Ma'anshan Paleolithic site

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Science china Earth Sciences 2010年第3期53卷 395-402页

作者： ZHANG Yue1,2.3, WANG ChunXue1,2. ZHANG ShuangQuan1,2.& GAO Xing1,2.1 institute of Vertebrate Paleontology and Paleoanthropology, chinese {2. of Sciences, Beijing 100044 2.Joint laboratory of Human Evolution and Archaeometry, chinese {2. of Sciences, Beijing 100044 3 state key laboratory of palaeobiology and stratigraphy, nanjing 2.0008 institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing China Joint laboratory of Human Evolution and Archaeometry Chinese Academy of Sciences Beijing China state key laboratory of palaeobiology and stratigraphy Nanjing China

Ten thousands of bone fragments were recovered from the Ma’anshan Paleolithic site, of which 4358 pieces can be identified to skeletal elements or species. In this research, the bone assemblages are quantified based on elements of MNI, MNE, and MAU. Then bone surface modifications and skeletal element profiles of the bone assemblages are studied to understand shlepping behaviors and reveal the technique of disarticulating and defleshing the animals’ bodies, etc. Based on the analyses of bone assemblages and the comparative study with the ethnoarchaeological as well as experimental data, it is assumed that later hominids at the site made fuller use of the game animals than the earlier hominids. Incorporating the lines of evidence from chronological dating, paleoenvironment, and polished bone tools between the two cultural layers, here we propose three hypotheses suggesting that the changes of environment, the migrations of the hominids from the North, or the demographic pulses may cause such a behavioral difference. However, it is yet to be determined which hypothesis can better explain the changes.

关键词： Ma’anshan site zooarchaeology Paleolithic hominid behavior

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A new species of Leptocycas (Zamiaceae) from the Upper Triassic sediments of Liaoning Province,china

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Journal of Systematics and Evolution 2010年第4期48卷 286-301页

作者： 1,2.3Jian-Wei ZHANG 2.ian-Xin YAO 1Jia-Rui CHEN 1Cheng-Sen LI 1(state key {2. of Systematic and Evolutionary Botany,institute of Botany,chinese academy of Sciences,Beijing 100093,china) 2.state key {2. of stratigraphy and Paleontology,institute of {12.,chinese academy of Geological Sciences,Beijing 100037,china) 3(Graduate University,chinese academy of Sciences,Beijing 100049,china) (state key {2. of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China) (state key {2. of stratigraphy and Paleontology Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China) (Graduate University Chinese Academy of Sciences Beijing 100049 China)

A new cycad,Leptocycas yangcaogouensis ***.,was found in sediments from the Late Triassic in western Liaoning,*** pinnately compound leaves(Pseudoctenis type)are screwed in a crown on the stem *** leaflets are linear,with parallel veins and decurrent bases on the *** leaf bases are *** cataphylls intermix with the *** female cone is ovoid in *** characteristics of the new plant are more similar to those of Leptocycas gracilis,a Triassic cycad from North America,but the new species differs from *** in the size of its stem(7–8 vs.3–5 cm in diameter,respectively),leaves(length×width 100×16 vs.30×7 cm,respectively)and leaf density along the stem(4–6 vs.1–2.bases/1 cm length,respectively).Both *** and ***,having leaves of the Pseudoctenis type,show a closer relationship to the extant Dioon of *** present study provides evidence for the origin of the genus Dioon,which may have come from Leptocycas plants of the *** would be assumed that the extent cycads in Zamiaceae originate from the pteridosperms in the Late Paleozoic and have evolved through the stage of *** and *** in Late Triassic,and reaching the extant Dioon.

关键词： china Cycadales Leptocycas Upper Triassic Zamiaceae

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GRAPTOLITES OF THE DIDYMOGRAPTUS (CORYMBOGRAPTUS) DEFLEXUS ZONE FROM HUANGNITANG, CHANGSHAN, ZHEJIANG

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古生物学报 2003年第4期 485-491页

作者： CHEN Xu 1) , XU Hong Gen 2. , YU Guo Hua 2. and WANG Long Wu 2. 1) nanjing institute of geology and palaeontology, the chinese {2. of Sciences, state key laboratory of palaeobiology and stratigraphy, nanjing 2.0008 2. Zhejiang Regional Geological Survey, Hangzhou 3112.1

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