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RADIATION OF THE FUSULINOIDEANS BETWEEN THE TWO PHASES OF THE END-PERMIAN MASS EXTINCTION, SOUTH CHINA

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RADIATION OF THE FUSULINOIDEANS BETWEEN THE TWO PHASES OF TH...

第二届国际古生物学大会

作者： Yue WANG, Yugan JIN state key laboratory of palaeobiology and stratigraphy, nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, nanjing 210008, China.

The end-Permian mass extinction is one of the largest bioevents in geological history. The benthic groups such as fusulinids, corals and bryozoans, nevertheless, suffered most severely at the end of the Guadalupian, which was regarded as the first phase of the event. As a consequence of the pre-Lopingian global regression, the large-scale carbonate platforms that used to be the habitats for the endemic benthos fauna disappeared in the peri-Pangean region, and the relic shelves in the Palaeotethys also disappeared.

关键词： Fusulinoideans radiation Late Permian South China

THE UNIQUE GENUS PALAEONTINODES (INSECTA, HEMIPTERA,PALAEONTINIDAE) FROM DAOHUGOU AND ADJACENT REGION:SYSTEMATICS, INDIVIDUAL ABERRATION AND TAPHONOMY

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THE UNIQUE GENUS PALAEONTINODES (INSECTA, HEMIPTERA,PALAEONT...

第二届国际古生物学大会

作者： Bo WANG, Haichun ZHANG, Yan FANG state key laboratory of palaeobiology and stratigraphy, nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, nanjing 210008, China.

The extinct family Palaeontinidae comprises more than thirty genera. However, none of them was erected on the basis of both a complete forewing and hindwing. Very recently, more than three hundred palaeontinid specimens have been discovered from Daohugou and adjacent regions. About half of them are attributed to Palaeontinodes, comprising five new species. Strange-

关键词： Palaeontinidae individual aberration convergence taphonomy

Late Mississippian brachiopod fauna of southern Shaanxi and implications for palaeobiogeography

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Late Mississippian brachiopod fauna of southern Shaanxi and ...

中国古生物学会第26届学术年会

作者： Qiao Li Shen Shu-zhong state key laboratory of palaeobiology and stratigraphy, nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, nanjing 210008

Fifteen brachiopods species in twelve genera are described for the first time from four horizons in the middle and upper parts of the Zhanpo Formation at the Huoyanxi section near Zhenba in the western Daba Mountains,... 详细信息

关键词： Brachiopod Viséan Serpukhovian palaeobiogeography southern Shaanxi

Fossil nothofagaceous leaves from the Eocene of western Antarctica and their bearing on the origin, dispersal and systematics of Nothofagus

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Science China Earth Sciences 2007年第10期50卷 1525-1535页

作者： LI HaoMin1 & ZHOU ZheKun2? 1 state key laboratory of palaeobiology & stratigraphy, nanjing Institute of Geology and Palaeontology, Chinese Academy of Sci- ences, nanjing 210008, China 2 key laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China state key laboratory of palaeobiology & stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing 210008 China key laboratory of Biodiversity and Biogeography Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China

Fossil leaves resembling Nothofagaceae have been investigated from the Eocene of western Antarctica and a new form genus Nothofagofolia is proposed for these kinds of fossils. Some new specimens belonging to this form genus are described. They were collected from the Fossil Hill locality of Fildes Peninsula, King George Island, South Shetland Islands, western Antarctica. Two new species, two new combinations and an unnamed species are reported. A number of published Nothofagus leaf fossils from the same locality are discussed and revised. As a result of these studies of Nothofagus leaf morphology, we conclude that (1) Nothofagus probably originated in high latitudes of the Southern Hemisphere during the middle-late Late Cretaceous and diversified, dispersed gradually to the lower latitudes of the same hemisphere; (2) leaf morphological characters are significant for the systematics of the family Nothofagaceae, especially at the intrageneric level; and (3) extant species of Nothofagus known from southern temperate areas have more primitive leaf morphological characters and lower leaf ranks than those from tropical mountains as well as those of the Fagaceae and Betulaceae.

关键词： Antarctica, Nothofagus, leaf morphology, leaf impression fossils, Gondwanaland, Nothofagofolia gen. et sp. nov., Eocene

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ABNORMALITIES OF ORGANIC CARBON ISOTOPE IN NON-MARINE PERMIAN-TRIASSIC BOUNDARY SEQUENCES OF DALONGKOU AND TAOSHUYUAN

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ABNORMALITIES OF ORGANIC CARBON ISOTOPE IN NON-MARINE PERMIA...

第二届国际古生物学大会

作者： Changqun CAO, Wei WANG, Lujun LIU state key laboratory of palaeobiology and stratigraphy, Chinese Academy of Sciences, nanjing 210008, China. nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, nanjing 210008, China

To investigate the organic carbon isotope excursions in the non-marine Permian-Triassic boundary sequences and correlate this with that in the marine sequences, 126 samples were determined for the carbon ratios (δ13Corg) of kerogen samples spanning 102 meters from the Guodikeng formation to the Lower Triassic Jiucaiyuan formation in the southern limb of Dalongkou Anticline (SDA) and Taoshuyuan sections of Xinjiang, China. Associated fossil assemblages suggested the P-T boundary is in the middle part of Guodikeng formation (proposed P-T boundary at A, B or C in figure below), and provided significantly biostratigraphic overlaps during the Permian-Triassic transition.

关键词： Permian-Triassic non-marine sequences organic carbon isotope Xinjiang

EVOLUTION AND MASS EXTINCTION OF THE ARCHAEOCYATHS ON THE YANGTZE PLATFORM

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EVOLUTION AND MASS EXTINCTION OF THE ARCHAEOCYATHS ON THE YA...

第二届国际古生物学大会

作者： Aihua YANG, Maoyan ZHU, Juning ZHANG, Kexing YUAN Department of Earth Sciences, nanjing University, nanjing 210008, China. state key laboratory of palaeobiology and stratigraphy, nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, nanjing 210008, China

Based the distribution and morphological analyses of the archaeocyathan, four evolutionary stages of archaeocyaths can be recognised on the Yangtze Platform, corresponding to the middle and late Qiongzhusian, early Canglangpuan, middle Canglangpuan, and late Canglangpuan. In general, archaeocyaths displayed the following evolutionary trends: 1) outer wall gradually became complicated, e.g. a simple wall evolved into a concentrically porous one, and then into a compound one;2) the percentage of archaeocyaths with colony growth gradually increased;3) the archaeocyath septa gradually became sparsely porous and aporous;and 4) the inner wall gradually became complicated, as the inner wall pores became smaller, and some inner walls developed microporous sheaths.

关键词： archaeocyaths extinct Cambrian Yangtze Platform

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 2Jian-Xin YAO 1Jia-Rui CHEN 1Cheng-Sen LI 1(state key laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China) 2(state key laboratory of stratigraphy and Paleontology,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China) 3(Graduate University,Chinese Academy of Sciences,Beijing 100049,China) (state key laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China) (state key laboratory 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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类旋壁超微构造的研究

微体古生物学报 2001年第4期18卷 321-334页

作者：周建平张遴信罗辉中国科学院南京地质古生物研究所南京2100082

电子显微镜下观察表明 ,除史塔夫类外 ,类旋壁有 8种类型 ,各分层的超微构造是由形状不同、粒径不一及排列方式各异的方解石晶粒组成。旋壁基本结构包括致密层、透明层、内疏松层、外疏松层、原蜂巢层 (?原始层 )、蜂巢层及后透明... 详细信息

电子显微镜下观察表明 ,除史塔夫类外 ,类旋壁有 8种类型 ,各分层的超微构造是由形状不同、粒径不一及排列方式各异的方解石晶粒组成。旋壁基本结构包括致密层、透明层、内疏松层、外疏松层、原蜂巢层 (?原始层 )、蜂巢层及后透明层。类标本受后期次生作用 ,可改变组成旋壁的方解石晶粒原有的形状 ,晶粒被重结晶。

关键词： ting类旋壁超微构造分层

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The internal structure of Early Cambrian fossil embryo Olivooides revealed in the light of Synchrotron X-ray Tomographic Microscopy

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Chinese Science Bulletin 2008年第24期53卷 3860-3865页

作者： CHEN Fang1,2 & DONG XiPing1,2 1 School of Earth and Space Sciences,Peking University,Beijing 100871,China 2 laboratory of Paleontology and stratigraphy,nanjing Institute of Geology and Paleontology,Chinese Academy of Sciences,Nan-jing 210008,China School of Earth and Space Sciences Peking University Beijing China laboratory of Paleontology and stratigraphy Nanjing Institute of Geology and Paleontology Chinese Academy of Sciences Nanjing China

Countless fossil embryo Olivooides and the hatched larvae,juveniles and adults(the latter two kinds are Punctatus) are recovered by means of acid maceration from the fine-crystalline to medium-crystalline phosphatic limestone and phosphatic micrite of Early Cambrian Kuanchuanpu Formation at the Shizhonggou section,near Kuanchuanpu Village,Ningqiang County,Shaanxi Province,*** the technique of Synchrotron X-ray Tomographic Microscopy,the 3D internal structure of Olivooides and Punctatus is *** morphological and statistic analyses are also given to the stellae structure of Olivooides and Punctatus,which indicates that this structure is a result of adaptive evolution to a lifestyle of fast-attaching after hatching,probably with the function of mucilage *** internal structure of Punctatus is described and *** ovum-like structure,a common internal feature of Punctatus,is considered as the taphonomic structure,rather than eggs or other biological *** structure is thought to be formed after the burial of the animal and before or during the *** original internal structure of Punctatus is assumed to be tabulae-filled,with soft body grown on them.

关键词：同步加速器 X射线显微镜寒武系化石动物区系内部结构

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