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A new discovery of macroscopic fossils from the Ediacaran Doushantuo Formation in the Yangtze Gorges area

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Chinese Science Bulletin 2006年第12期51卷 1487-1493页

作者： TANG Feng yin chongyu Bengtson Stefan LIU Yongqing WANG Ziqiang LIU Pengju GAO Linzhi Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Department of Palaeozoology Swedish Museum of Natural History Box 50007 SE-10405 Stockholm Sweden School of Earth Sciences and Resources China University of Geosciences Beijing 100083 China

Two new horizons with macroscopic fossils are reported in the Doushantuo Formation, Ediacaran System, from the Yangtze Gorges area. The fossils were discovered in the lower and middle black shales of the Doushantuo Formation in the new section at Sandouping Town, Zigui County, Hubei Province. The new macroscopic assemblages in- clude Chuaria and Tawuia, and occur below the well- known ”Miaohe Biota”. These fossils indicate that after the Nantuo ice age, macroscopic multicellular organisms gradually increased in abundance and diversity. Simple, discoidal carbonaceous compres- sions such as chuarids are present in the initial macrofossil assemblage of the Doushantuo Stage. This assemblage was eventually replaceded by the more diverse Miaohe macrofossils, including unam- biguously branching forms, in the uppermost Dou- shantuo Formation. The new discovery of carbona- ceous compression macrofossils from the Doushan- tuo Formation in the Yangtze Gorges area provides new evidence for the correlation of late Neoprotero- zoic successions in southern China.

关键词：三峡地区古化石页岩湖北

Discovery of the budding phosphatized globular fossils from the Neoproterozoic Doushantuo Formation at Weng'an, Guizhou Province, China

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Progress in Natural Science:Materials International 2006年第10期16卷 1079-1083页

作者： LIU Pengju , yin chongyu and TANG Feng (Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China) [a]Institute of Geology Chinese Academy of Geological Sciences Beijing China

There is much debate on biological affinities of the phosphatized globular fossils from the Neoproterozoic Doushantuo phosphorites at Weng’an, Guizhou Province. Here we report for the first time the budding structures of some of these globular fossils, which have previously been interpreted as the resting eggs and early cleavage embryos of metazoans. The budding structures are similar to the germinating tubes of the spore and zygote of living algae, suggesting that some globular fossils from the Doushantuo phosphorites bear affinity with algae. The present new information indicated various biological affinity of the phosphatized globular fossils from the Doushantuo phosphorites.

关键词： Neoproterozoic Donshantuo Formation globular fossil budding structure algae resting eggs embryos.

Acanthomorph Biostratigraphic Succession of the Ediacaran Doushantuo Formation in the East Yangtze Gorges,South China

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Acta Geologica Sinica(English Edition) 2011年第2期85卷 283-295页

作者： yin chongyu LIU Pengju Stanley M. AWRAMIK CHEN Shouming TANG Feng GAO Linzhi WANG Ziqiang Leigh A. RIEDMAN Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Department of Earth Science University of California Santa Barbara CA 93106 USA School of Earth Sciences and Resources China University of Geosciences Beijing 100083 China

Large acanthomorphic acritarchs have been found in chert of the Ediacaran Doushantuo Formation at several localities in South China, including the East Yangtze Gorges of Hubei Province,Weng＇an area of Guizhou Province, and elsewhere. However, their potential for biostratigraphic subdivision and correlation of Ediacaran successions is limited by facies control, taphonomic biases,and taxonomic problems. In the Yangtze Gorges, the Doushantuo Formation is generally subdivided into four lithologic members. However, in the Weng＇an area, the Doushantuo Formation comprises just a lower and upper part separated by a mid-Doushantuo erosional surface. In the Yangtze Gorges at the Zhangcunping section, the Doushantuo succession is similar to that at Weng＇an. So far, the correlation between the Yangtze Gorges and Weng＇an area, and elsewhere has been an issue of debate. To resolvethe debate, we selected eight sections in the Yangtze Gorges area and systemically sampled chert nodules of the Doushantuo Formation, focusing in particular on the upper Doushantuo Formation. Our data confirm two different assemblages appearing separately in the second and third members, which are separated by a negative δ13C excursion （EN2）. The lower assemblage is characterized by Tianzhushania and a diverse suite of large acanthomorphic acritarchs. The upper assemblage is distinguished from the lower assemblage, by （1） absence of Tianzhushania; （2） occurrence of abundant,100-150 μm, smooth-walled spherical microfossils; （3） occurrence of highly diverse acanthomorphic acritarchs including species extending from the second member and new forms in this member; （4）occurrence of unnamed new forms of protist; and （5） occurrence of the tubular microfossil Sinocyclocylicus guizhouensis. Since the Tianzhushania-dominated assemblage is not present in Australia, it seems that only the upper acanthomorph assemblage is present and thus the lower Doushantuo acanthomorph assemblage is missing in Australia.

关键词： Acanthomorph biostratigraphic succession Ediacaran Doushantuo Formation the Yangtze Gorges South China

The Early Evolution of the Acanthomorphic Acritarchs in China and Their Biostratigraphical Implication

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Acta Geologica Sinica(English Edition) 1996年第2期70卷 193-206,219-220页

作者： yin chongyu and Gao Linzhi Institute of Geology, Chinese Academy of Geological Sciences, Beijing Institute of Geology Chinese Academy of Geological Sciences Beijing

On the basis of a study of the acanthomorphic acritarchs discovered in the Late Proterozoicto Early Cambrian Meishucunian Stage in different regions of China, especially in southernShaanxi and the Yangtze Platform, coupled with a study of the assemblages, morphological cor-relation, microstructure, and evolutional relations of the acanthorphic acritarchs, as well as awide correlation with those found in different regions of the world, the authors discuss the earlyevolutionary stages of the acanthomorphs, features of their assemblages in various stages, theirbiostratigraphical significance, and their evolutionary trend in China.

关键词： acanthomorphic acritarch Late Proterozoic evolutionary stage biostratigraphy

Storm Deposits of the Sinian Zhangqu Formation in Northern Anhui——An Upward Shallowing Carbonate Sequence

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Acta Geologica Sinica(English Edition) 1990年第2期64卷 129-145,234-235页

作者： Qiao Xiufu Xing Yusheng Gao Linzhi yin chongyu Yue Zhao Liu Guizhi Institute of Geology, Chinese Academy of Geological Sciences, Beijing Jia Zhongpeng Gao Linzhi Chinese Academy of Geological Sciences Beijing

This paper studies. for the first time, the storm deposits of a carbonate sequence in the Sinian ZhangquFormation in northern Anhui. In the formation. a great number of calcareous trider sponge spicules were dis-covered in a distal storm turbidity sequence, which have provided further evidence for the correlation of theSinian Systems in North and South China from a view point of palaeontology.

关键词： Zhang Storm Deposits of the Sinian Zhangqu Formation in Northern Anhui An Upward Shallowing Carbonate Sequence

Microfossils from the Chert in the Lower Cambrian Shuijingtuo Formation at Miaohe, Zigui, Hubei Province

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Acta Geologica Sinica(English Edition) 1993年第2期67卷 223-233,246-247页

作者： yin chongyu, Yue Zhao, Gao Linzhi Institute of Geology, CAGS, Beijing and Ding Qixiu Hubei Geological Institute, Hubei Bureau of Geology, Wuhan Institute of Geology CAGS Beijing China

This paper reports for the first time on the microfossils discovered in the black cherts of the basal part of the Lower Cambrian Shuijingtuo Formation at Miaohe village, Zigui County, Hubei Province, all of which were observed in thin sections. Nine genera, 9 species and 3 indeterminate species (including a new species) are described. According to these microfossils, the conclusion is made that the microfossil zone may be equivalent to the small shelly fossil assemblage zones 2—3 of the Meishucun stage. They have provided another important line of evidence for the correlation of the Sinian-Cambrian boundary strata with those of the adjacent areas.

关键词： the Lower Cambrian the Shuijingtuo Formation chert microfossil the Sinian-Cambrian Boundary

Microfossils from the Upper Sinian (Late Neoproterozoic) Doushantuo Formation in Changyang, Western Hubei, China

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Continental Dynamics 1999年第2期 1-18页

作者： yin chongyu (Institute of Geology,Chinese Academy of Geological Sciences, Beijing 100037)

Chert of the Upper Sinian Doushantuo Formation near Changyang, western Hubei, China, contains an exceptionally well-preserved assemblage of spinose, spheroidal, and filamentous microfossils belonging to nineteen species. In this assemblage at least fifteen taxa are recognised to be plankton and only four to be microbenthos. The existing of large acanthomorphic acritarchs and a small number of microbenthos (matbuilding cyanobacteria) suggest an open coastal marine depositional environment. In comparison with probable coeval assemblages described from the Baklia Formation Prins Karls Forland, Svalbard (Knoll, 1992a) and the Biskopasen Conglomerate, Norway (Spjeldnaes 1963, 1967; Vidal, 1990), the Doushantuo microfossils (which have similar taxa) are remarkably abundant, diverse, and well-preserved. These data demonstrate the broad geographical distribution of pre-Ediacarian microbial taxa and further validate the use of acritarchs for the correlation of pre-Ediacarian successions.

关键词： microfossils Upper Sinian Doushantuo Formation Late Neoproterozoic

A New Idea of Sinian Doushantuo'an Metaphyte Fossils from Xiuning, Anhui Province

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Acta Geologica Sinica(English Edition) 1997年第4期71卷 491-501,515-517页

作者： Tang Feng, National Geological Museum of China, Xisi, Beijing 100034yin chongyu and Gao LinzhiInstitute of Geology, Chinese Academy of Geological Sciences, 26 Baiwanzhuang, Beijing 100037 Fei Zhenbi National Geological Museum of China Xisi Beijing 100034 Institute of Geology Chinese Academy of Geological Sciences 26 Baiwanzhuang Beijing 100037 [?]Tang Feng Born in 1965 graduated from the Department of Earth Sciences Nanjing University in 1987 got his master degree at the Chinese Academy of Geological Sciences in 1993. Now he is associate research professor of the National Geological Museum of China and engaged in the study of Precambrian stratigraphy and palaeontology.

This paper gives a summary of the fossil data from the Sinian Doushantuo' an Lantian Formation in the Xiuning area, Anhui Province, China, and reports the genital butt structure comparable to that of some modern advanced algae and the fossil structure comparable to the dehiscence of sporangia as well as the ontogenetic phenomenon occurring possibly from the formation of embryos by zygote germination to the production of sessile benthonic algal adults. This phenomenon furnishes a useful clue to the further study of the life history of alternate generations in advanced algae and provides megafossil evidence for the sex differentiation of metaphytic algae.

关键词： Doushantuo' an stage metaphyte fossil reproductive structure alternation of generations Xiuning Anhui

神秘的微型隧道——贵州瓮安震旦系陡山沱组磷酸盐化化石上的黄铁矿拖曳痕

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地质论评 2006年第1期52卷 11-14,i0006-i0007页

作者：刘鹏举尹崇玉中国地质科学院地质研究所北京100037

贵州瓮安磷矿陡山沱组磷质岩中含有丰富的磷酸盐化球状化石,化石常为一些微型隧道所贯穿,这些微型隧道有生物成因和非生物成因解释。通过详细观察,发现隧道的末端常见一个黄铁矿颗粒,其大小与隧道宽度一致;隧道内壁发育有平行的纵纹,在... 详细信息

贵州瓮安磷矿陡山沱组磷质岩中含有丰富的磷酸盐化球状化石,化石常为一些微型隧道所贯穿,这些微型隧道有生物成因和非生物成因解释。通过详细观察,发现隧道的末端常见一个黄铁矿颗粒,其大小与隧道宽度一致;隧道内壁发育有平行的纵纹,在化石壳面上发育的隧道底部常见呈棱角状的突起,在隧道转折处多呈尖凸的棱角状。这些隧道的成因应与黄铁矿关系密切,隧道为有机质降解产生的气体形成了足以使黄铁矿颗粒前导面胶磷矿溶解的压力、并驱使黄铁矿颗粒移动所形成的拖曳痕。

关键词：微型隧道遗迹化石黄铁矿颗粒拖曳痕贵州瓮安陡山沱组