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Community structure and composition of the Cambrian chengjiang biota

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Science China Earth Sciences 2010年第12期53卷 1784-1799,1950-1955页

作者： ZHAO FangChen ZHU MaoYan HU ShiXue State key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China Chengdu Institute of Geology and Mineral Resources Chengdu Center of China Geological SurveyChengdu 610081China

Based on previously published species data(228 species in over 18 phyla) and field sampling(114 species and 18406 individuals) in the chengjiang-Haikou-Anning area,we analyzed quantitatively the paleocommunity composition and structure of the Cambrian chengjiang biota(Cambrian Series 2,eastern Yunnan,China).Arthropods dominate the community both in species diversity(species:37%) and in abundance(individuals:51.8%).Priapulids(individuals:22.6%) and brachiopods(individuals:16.3%) follow in abundance *** arthropod Kunmingella douvillei(26.2%),the priapulid Cricocosmia jinning-ensis(15.4%),and the brachiopod Diandongia pista(11%) are the three most abundant *** analyses show that the community was dominated by epifaunal organisms(species:63%,individuals:68.4%) followed by infaunal organisms(species:11.9%,individuals:25.9%),nektobenthic organisms(species:11.5%,individuals:2.6%),and pelagic organisms(species:5.3%,individuals:3.1%).The diverse feeding strategies,dominated by suspension feeders(species:35.6%,individuals:26.1%) and hunter/scavengers(species:31.1%,individuals:40.4%),indicate the former existence of a complex food chain and intense *** vagrant omnivores(28.2%),infaunal vagrant hunter/scavengers(19.8%),epifaunal sessile suspension feeders(17.7%),and epifaunal vagrant hunter/scavengers(15.3%) were the most abundant ecological groups,represented primarily by arthropods,poriferans,priapulids,and *** group analyses reveal that the early Cambrian chengjiang biota is similar in community patterns and functional relations to modern biotas in shallow marine settings.

关键词： chengjiang biota Cambrian Cambrian explosion evolution paleocommunities

A New Vetulicolian from the Early Cambrian chengjiang Fauna in Yunnan of China

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Acta Geologica Sinica(English Edition) 2003年第3期77卷 281-287页

作者： CHENAilin FENGHongzhen ZHUMaoyan MADongsheng LIMing DepartmentofEarthScience NanjingUniversityNaniingJiangsu210093 NanjingInstituteofGeologyandPalaeontology ChineseAcademyofSciencesNanjingJiangsu210008

The genus and species Yuyuanozoon magnificissimi gen. et sp. nov., a new fossil vetulicolian, is reported from the Early Cambrian chengjiang Fauna in Yunnan of China. It has a bipartite body plan and five pairs of chain-formed gill sacs, showing the general characteristics of Ventulicolia. However, the exclusive 'atrial cavity' and external gill observed indicate that the new form is different from those previously described as vetulicolians, probably representing a lineage developed within deuterostomes and more primitive than urochordates.

关键词： vetulicolian chengjiang Fauna Early Cambrian chengjiang Yunnan China

A Rare Lobopodian,Antennacanthopodia gracilis *** sp.,from the Cambrian chengjiang Lagersttte,Southwestern China,and Its Bearing on Basal Arthropod Phylogeny

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地学前缘 2009年第S1期16卷 261-261页

作者： Qiang Ou~1,Jianni Liu~2,Degan Shu~(1,2),Jian Han~2,Zhifel Zhang~2,Xiaoqiao Wan~1,Qianping Lei~1 1.Early Life Evolution Laboratory,School of Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,China. 2.Early Life Institute and Department of Geology,Northwest University,Xi’an 710069,China.

Ancestral lobopodians,which diversified and flourished in the Cambrian seas,have long drawn much attention in that not only their living counterparts,onychophorans and tardigrades,but euarthropods(Chelicerata,Myriapod... 详细信息

关键词： lobpodian Antennacanthopodia gracilis chengjiang fossil Lagersttte Southwestern China

A Treasure Trove of Fossils

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China Today 2019年第4期68卷 74-77页

MAOTIAN is a cap-shaped mountain 52 km southeast of Kunming, the capital of Yunnan Province. It came to public attention in the 1980s after a big trove of fossils dating back 530 million years was discovered there. This was called one of the biggest scientific discoveries of the 20th century. As Maotian is located in chengjiang County, the fossil site is named after the county.

关键词： Treasure Trove Fossils MAOTIAN chengjiang County

Waptia-like Euarthropods from Burgess - Shale - type Biotas in the Early Cambrian of Eastern Yunnan, China

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Journal of Geographical Research 2019年第2期2卷 20-24页

作者： Jun Zhao Guobiao Li Paul ASelden State Key Laboratory of Environmental Geology and Biogeology China University of GeosciencesBeijing100083China School of Earth Sciences and Resources China University of GeosciencesBeijing100083China Department of Geology University of Kansas1457 Jayhawk BoulevardLawrenceKS66045USA Natural History Museum Cromwell RoadLondon SW75BDUK

Waptia-like euarthropods existed for rather a long time in the Early Cambrian of eastern Yunnan;well preserved representatives come mainly from three Burgess Shale-type biotas:chengjiang,Xiaoshiba and ***,we introduce a newly-discovered bivalved euarthropod from the Guanshan biota,the specific identity of which cannot be confirmed due to the absence of soft parts and poor preservation of the specimen,but its general morphology allows it be attributed to *** representatives from the chengjiang and Xiaoshiba biotas are also reconsidered:the preservation mode and length of specimens of Clypecaris pteroidea are variable;Clypecaris serrate has limbs beneath the carapace,which can number up to at least 4 *** fossil sections bearing Waptia-like euarthropods occur over a wide area around Dianchi Lake.

关键词： Bivalved arthropods Soft parts Exceptional preservation chengjiang Guanshan Xiaoshiba