Issue 2,2005 Table of Contents

1 SPORES AND POLLEN VS PLANT MEGAFOSSILS: DISCREPANCY OF GEOLOGICAL RECORDS AND THEIR PALAEOBOTANICAL SIGNIFICANCE

ZHU Huai-Cheng , ) , OUYANG Shu ) ) Nanjing Institute of Geology , Palaeontology , the Chinese Academy of Sciences , Nanjing ) State Key Laboratory of Palaeontology , Stratigraphy , Nanjing

2005(2):161-174. DOI: 1

[Abstract](341) [HTML](0) [PDF 0.00 Byte](11)

Abstract:
分散孢粉与植物大化石地质记录的不一致是常见现象，基本上是受孢粉的高产量及其外壁的较强抗腐蚀性，以及沉积环境的影响所致。主要根据我国古、中生代孢粉及植物化石资料，举例说明其地质记录的差异和其导致的不同解析和结论，及其古植物学意义。涉及的问题包括：1．新疆北部石炭二叠纪和塔里木盆地二叠纪的植物区系性质，2．我国古、中生代的主要成煤植物，3．古植代／中植代界线和植物在二叠纪末有无群体灭绝，4．某些植物类群的最早化石记录或起源，5．某些地层的地质时代问题。本文对此等问题提出的与古植物学家不甚一致的结论，如塔里木自早二叠世已属亚安加拉区，我国古、中生代主要成煤植物是真蕨类尤其是树蕨，而非鳞木类、科达类，或中生代裸子植物；如果将盾籽类作为中植代植物，则古植代／中植代界线在亚安加拉区要下降到Bashkirian之内或Bashkirian—Moscovian之交，等等，是否正确，有待检验。

2 A VISEAN FLORA (CHOUNIUKOU FORMATION) FROM JINGYUAN AND JINGTAI IN GANSU, NORTHWESTERN CHINA

吴秀元王军张宜 I.M.STEVANOVIC-WALLS H.W.PFEFFERKORN

2005(2):175-202. DOI: 1

[Abstract](324) [HTML](0) [PDF 0.00 Byte](4)

Abstract:
In China, the terrestrial-marine inter-deposited Carboniferous are best developed in Qilian Mountain and Hexi Corridor, where both fauna and plant fossils are well preserved and can be compared to that of Europe and North America. Here a Visean flora is reported. The plant bearing Chouniukou Formation is 120m thick, consists of muddy shale, coal seams, clay, silty sandstone and marl, representing deposits of inter-tide lagoon, coastal swamp and peat swamp. The fossil plants include: Sublepidodendron sp., Lepidodendron gansuense sp. nov., Lepidodendron volkmannianum, Lep. jingyuanense sp. nov., Lep. ciyaoense sp. nov., Lep. shanyangense, Lep. cf. shanyangense, Lep. cf. aolungpulukense, Lep. sp.1, Lep. sp.2, Cathaysiodendron jingyuanense, C. cf. incertum, Lepidostrobophyllum rotundifolium sp. nov., Bothrodendron ruchengense, Archaeocalamites scrobiculatus, Hamatophyton verticillatum, Cardiopteridium spetsbergense, C. podozamioides, Triphyllopteris collombiana ,Triphyllopteris sp. Rhacopteris sp., Adiantites gothanii, Rhodeopteridium hsianghsiangense, R.cf. hsianghsiangense, R. cf. chinghaiense, Paripteris gigantea, P. cardiopteroides, Linopteris sp. This flora presents a phase of the vegetation right prior to the Namurian global glaciation from the tropical island. Features of the flora, such as the botanical significance, phytogeography, and the age determination and a comparison with other known Visean floras are detailed.

3 A STUDY ON THE PRELIMINARY RESULTS OF LATEST ORDOVICIAN CHITINOZOAN FROM WANGJIAWAN, YICHANG, CHINA

Thijs R. A. VANDENBROUCKE , ) , CHEN Xu ) , Jacques VERNIERS ) ) Research Unit Palaeontology , Ghent University , Krijgslaan /S , Ghent , Belgium ) Research Assistant of the Fund for Scientific Research-Flanders

2005(2):203-208. DOI: 1

[Abstract](317) [HTML](0) [PDF 0.00 Byte](13)

Abstract:
中国宜昌王家湾北剖面已被提名为奥陶系赫南特阶的全球候选层型剖面。为此著者分析了王家湾地区,特别是王家湾南和王家湾小河边奥陶—志留系间相关地层共20个层位的几丁虫样品。初步研究的结果表明,王家湾赫南特阶之下,相当奥陶纪第6个阶顶部,即五峰组中部产出的几丁虫与美国内华达中部Vnini河谷以及加拿大极区Cape Mannig的Ordochitina nevadensis 和Nevadachitina vininica 几丁虫带的分子可以进行对比。

4 ALBIAN PALYNOLOGICAL ASSEMBLAGE FROM THE BOREHOLE YU-302 IN YUSHU --WITH FOCUS ON THE AGE OF THE DENGLOUKU FORMATION IN SONGLIAO BASIN

黎文本李建国

2005(2):209-228. DOI: 1

[Abstract](265) [HTML](0) [PDF 0.00 Byte](11)

Abstract:
榆-302孔位于松辽盆地东部边缘，钻深899．30m，顶部3．15m为第四系，上部683，65m以砂岩为主，夹少量泥岩，下部212．50m以灰色泥岩为主，夹砂岩及少量凝灰岩。以盆地内岩石地层比较，其上部应属登楼库组3段，下部为登楼库组2段，剖面缺失登楼库组4段，未钻及登楼库组1段。整个剖面上的孢粉组合面貌基本一致，共有苔藓、蕨类植物孢子40属70余种、裸子植物花粉19属28种、被子植物花粉2属3种、藻类及疑源类6属8种。组合中的绝大部分属种都是我国北方早白垩世孢粉植物群的常见分子，如Cicatricosisporites(约占组合的7％-35％)，Appendicisporites，Impardecispora，Pilosisporites，Aequitriradites，Kuylisporites，Triporoletes等。特别有意义的是自登楼库组2段开始即已出现大孢子Balmeisporites holodictyus，被子植物花粉Polyporites debilis，Retitricolpites sp．和沟鞭藻Vesperopsis zhaodongensis。登楼库组3段出现曾见于阿尔布期的Scopusporis lautus及晚白垩世的Scopusporis verrucosus，Trochicola scollardiana，Verrucosisporites fuyuensis等，证明其时代属早-中阿尔布期。榆-302孔的孢粉证据表明登楼库组至少自登楼库组2段起已进入阿尔布期，至于登楼库组1段因无更多新的资料佐证。阿普特期的时代定位可暂予保留。文中描述一新种Verrucosisporites fuyuensis sp．nov．和一新联合种Scopusporis uerrucosus(Chlonova)comb．nov．。

5 EARLY SILURIAN (TELYCHIAN) RUGOSE CORAL FAUNA OF DAGUAN AREA, NORTHEAST YUNNAN

CHEN Jian-Qiang ) , HE Xin-Yi ) , TANG Lang , ) ) China University of Geosciences , Beijing ) Guangxi University , Nanning

2005(2):229-246. DOI: 1

[Abstract](360) [HTML](0) [PDF 0.00 Byte](11)

Abstract:
对大关地区的Telychian期嘶风崖组和大路寨组的四射珊瑚进行详细研究。嘶风崖组计有四射珊瑚18属34种,大路寨组计有四射珊瑚9属10种。描述四射珊瑚12 属19 种,其中1 新属, 5 新种,分别是:Protoketo phyllum daguanense gen. et sp. nov., Crassilasma huanggexiense sp. nov., Pseudophaulactis heae sp. nov., P.convolutus sp. nov., Shensiphyllum minor sp. nov.。论述了嘶风崖组和大路寨组四射珊瑚动物群特征及其地质意义,尤其是嘶风崖组的四射珊瑚代表了上扬子区Telychian早期的四射珊瑚动物群,完善了上扬子区志留纪兰多维列世四射珊瑚的序列和对研究该阶段四射珊瑚辐射期的进一步分析具有重要意义。

6 OSTRACODES FROM THE CHUANSHAN FORMATION AT THE SHENCUN SECTION OF TONGLU, ZHEJIANG

YAN Tie-Zeng ) , WANG Shang-Qi ) , QI Yu-Ping ) ) Geological Survey Institute of Zhejiang province , Hangzhou ) Nanjing Institute of Geology , Palaeontology , the Chinese Academy of Sciences , Nanjing

2005(2):247-259. DOI: 1

[Abstract](313) [HTML](0) [PDF 0.00 Byte](10)

Abstract:
The fossil ostracodes studied in the present paper were collected from the Chuanshan Formation at the Shencun section of Tonglu, Zhejiang, including 14 genera, 4 subgenera and 22 species. Of them, 4 species are described as new and 4 species are dealt with under open nomenclature. Among the above-mentioned ostracodes, 19 species are obtained from the Third Member of the Chuanshan Formation and the rest (Chamishaella qilianshanensis, Paraparchites sp. cf. P. distortus and Healdianella sp.1) are only known from the First or Second Member of the Chuanshan Formation. The Hollinella (Praehollinella) emaciata-Basslerella ola assemblage is proposed in this paper for those ostracodes from the Third Member and represents the Longlingian (of the Chuanshanian of Early Permian). The conodonts are mainly discovered in the base of the First Member of the Chuanshan Formation, including Streptognathodus elegantulus, S. oppletus, S. cancellosus, Idiognathodus lobulatus, etc. These conodonts indicate that the First Member, especially its base is middle-late Kasimovian to late Gzhelian in age (Late Carboniferous). The Third Member of the Chuanshan Formation might be deposited in a nearshore, shallow water and open marine environment with lower energy based on the ostracode ecoassemblage and lithological features.

7 ENVIRONMENTAL SIGNIFICANCE OF OSTRACOD FOSSILS FROM UPPER PART OF 3RD MEMBER OF QUANTOU FORMATION, SANZHAO AREA, SONGLIAO BASIN

ZHANG Zhi-Li , ) , YANG Xiang-Ning ) , Meng Qi-An ) , CAO Li-Jun ) , ZHANG Ying ) )Department of Earth Sciences , Nanjing University , Nanjing ) Institute of Exploration , Development , Daqing Oilfield Co. Ltd. , Daqing , Heilongjiang Province ) Agriculture , Industry , Commerce Combine , Daqing Petroleum Administration , Daqing , Heilongjiang Province

2005(2):260-266. DOI: 1

[Abstract](261) [HTML](0) [PDF 0.00 Byte](11)

Abstract:
The upper part of 3rd member of the Early Cretaceous Quantou Formation is primarily composed of purple and red sandstones and mudstones in Sanzhao area, Songliao Basin. Previous studies suggested that the red mudstones, in which abundant and well-preserved ostracods and other fossils have been found, could be considered as fluvial deposits. Based on results of a comprehensive analysis of the abundance variation of ostracod species, their ecologic and taphonomic features, we interpret the mudstones in the upper part of 3rd member of the Quantou Formation was formed in a shallow lacustrine environment. Regional data has further suggested that the lacustrine environment had been existed in the early period and gradually expanding when the oil-generating Yang-3 Formation was deposited.

8 A DISCUSSION ON SEVERAL PROBLEMS OF CALATHID FOSSILS

LIU Bing-Li , ZHU Zhong-De , LI Xiang-Ming

2005(2):267-282. DOI: 1

[Abstract](236) [HTML](0) [PDF 0.00 Byte](11)

Abstract:
Based on the research of numerous Calathid fossils this paper discussed the skeletal structures, growth orientation ,living pattern and taxonomic position of the calathids and described three new species,including Calathium(Calathella)yangtziensis. Calathium bachuensis and Calathium elongates, which were collected from the Yangtze River area and Tarim Basin, Xinjiang, China. The calathids fossil has a pair of porous body wall of which the outer wall is reticulate-patterned and perforated by incurrent pores and canals; while the inner wall has excurrent pores and canals that are rhomboidally arranged meshes. These pores and canals of the organism constitute a system of current circulation through out the central cavity similar to those of sponges or archaeocyathids. The system of current circulation and other characters of skeletal structure in calathids suggest that the organism should be a kind of inferior animal of filter feeder but should not be classified into Receptaculitid algae. For this reason, the Calathids maybe extricated from Receptaculitidae and classified into Soanitidae (Miagkova,1965) of Porifera (in a broad sense) in taxonomy.

9 MIDDLE TRIASSIC SPONGES FROM QINGYAN, GUIZHOU

DENG Zhan-Qiu

2005(2):283-295. DOI: 1

[Abstract](292) [HTML](0) [PDF 0.00 Byte](4)

Abstract:
Middle Triassic sponges were studied in this paper. Three new genus and their species were described and they are Cohartmanina bangtoupoensis (Stiller), Micraulospongia leidapoensis gen. et sp.nov. and Parahexactinoderma qingyanensis gen. et sp.nov. from the Qingyan Formation.

10 SOME MIDDLE JURASSIC BIVALVES FROM THE KUCHE DEPRESSION OF THE TARIM BASIN, NORTHWESTERN CHINA

JIANG Bao-Yu

2005(2):296-305. DOI: 1

[Abstract](381) [HTML](0) [PDF 0.00 Byte](11)

Abstract:
Some bivalves belonging to 4 species of 3 genera from the Middle Jurassic in the Kuche Depression are described in this paper. Based on the study of hinge variation of Kija, the genera Acyrena, Pseudocardinia, Jiangxiella, Apseudocardinia, Hunanella, Yananoconcha, Hamiconcha and Fengjiachonia are considered as junior synonyms of Kija. The Middle Jurassic bivalves of the Kuche Depression are members of the Lamprotula (Eolamprotula) cremeri-Kija (=Pseudocardinia) kweichouensis Fauna, they can be di- vided into the Kija ovalis-K. kweichouensis Assemblage and the Lamprotula(Eolamprotula)guang yuanens is-Margaritifera? cf. isfarensis Assemblage. The Kija ovalis-K. kweichouensis Assemblage is collected from the Kezilenuer Formation and the lower part of Qiakemake Formation, indicating an earlier Middle Jurassic age, probably ranging from Aalenian to Bajocian. The Lamprotula (Eolamprotula) guangyuanensis-Margaritifera? cf. isforensis Assemblage is distributed in the upper part of Qiakemake Formation, reflecting a late Middle Jurassic age, probably concentrated from Bathonian to Callovian.

11 TEMPORAL-SPATIAL DISTRIBUTION OF SINULATISPORITES IN NORTH CHINA AND ITS STRATIGRAPHIC SIGNIFICANCE

ZHANG Xi-Qi , WANG Ming-Zhen , ZHAO Xiu-Li

2005(2):306-313. DOI: 1

[Abstract](323) [HTML](0) [PDF 0.00 Byte](9)

Abstract:
In recent years, the authors have been studying on the temporal-spatial distribution of Sinulatisporites which existed in the Carboniferous-Permian Sporopollen Assemblages in Western Shandong and North China region. Results show that the distribution of Sinulatisporites was only limited in the northern sub-region of the Cathaysian flora, and began to occur at the early Early Permian (Shanxi Formation), died out at the middle and late Middle Permian. Sinulatisporites can be re- garded as a typical element of the northern sub-region of Middle Cathaysian flora in Western Shandong and North China in the period from late Early Permian to early Middle Permian.The maternal plant of Sinulatisporites may be a kind of hydrophilous Filicinae or Pteridosperm. It is stable in occurring horizon, and often rich in the coal-bearing member of late Early Permian and the sandstone- mudstone member of early Middle Permian. It may provide important basis for the correlation of coal seams and classification of Permian strata.

12 SPOROPOLLEN RECORD IN CHUODUN SITE IN SUZHOU, JIANGSU AND PALAEOENVIRONMENT IN TAIHU REGION

ZHANG Rui-Hu

2005(2):314-321. DOI: 1

[Abstract](293) [HTML](0) [PDF 0.00 Byte](10)

Abstract:
Based on pollen record and excavated materials in the Chuodun Site, it is inferred that human activities had some effect on the main characters of pollen assemblages in the palaeo- sites, and the neolithic cultural rise and fall in Taihu basin was related with terrain, climate, sea-level changes and the development of the dishing basin. For example, abundant connotations in Chuodun Site is probably related to its higher topography.

13 HALYSESTHERIA YUI FROM THE NENJIANGIAN TAIPINGLINCHANG FORMATION OF HEILONGJIANG PROVINCE, CHINA

LI Gang

2005(2):322-325. DOI: 1

[Abstract](318) [HTML](0) [PDF 0.00 Byte](16)

Abstract:
The specimens of Halysestheria yui (Chang) described in this peper are from the blackish grey shales of the basal Taipinglinchang Formation (Nenjiangian) at Yongan village of Jiayin County, Heilongjiang Province, China. Through the comparison between H. yui and H. qinggangensis, it is considered that the latter should be a junior synonym of the former. According to the SEM study of the species H. yui, it is noted that the growth bands near the umbo have regular reticulations between the long radial ridges, while the reticulation feature was overlooked by the observation under light microscope in the early literature. Thus, the description of the species H. yui is revised.

Issue 2,2005 Table of Contents

Current Issue

Volume

Issue

Most Read

Most Cited

Most Downloaded

WeChat

Mobile website