Macroscopic Carbonaceous Compressions in a Terminal Proterozoic Shale: A Systematic Reassessment of the Miaohe Biota, South China

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Macroscopic Carbonaceous Compressions in a Terminal Proterozoic Shale: A Systematic Reassessment of the Miaohe Biota, South China

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dc.contributor.author Steiner, Michael
dc.contributor.author Xiao, Shuhai
dc.contributor.author Yuan, Xunlai
dc.contributor.author Knoll, Andrew
dc.date.accessioned 2009-05-28T19:42:56Z
dc.date.issued 2002
dc.identifier.citation Xiao, Shuhai H., Xunlai L. Yuan, Michael Steiner, and Aandrew H. Knoll. 2002. Macroscopic carbonaceous compressions in a terminal Proterozoic shale: A systematic reassessment of the Miaohe biota, south China. Journal of Paleontology 76, no. 2: 347-376. en
dc.identifier.issn 0022-3360 en
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:3008151
dc.description.abstract Carbonaccous compression fossils in shales of the uppermost Doushantuo Formation (ca. 555-590 Ma) at Miaohe in the Yangtze Gorges area provide a rare Burgess-Shale-type taphonomic window on terminal Proterozoic biology. More than 100 macrofossil species have been described from Miaolte shales, but in an examination of published and new materials, we recognize only about twenty distinct taxa, including <i>Aggregatosphaera miaoheensis</i> new gen. and sp. Most of these fossils can be interpreted unambiguously as colonial prokaryotes or multicellular algae. Phylogenetically derived coenocytic green algae appear to be present, as do regularly bifurcating thalli comparable to red and brown algae. At least five species have been interpreted as metazoans by previous workers. Of these, <i>Protoconites minor</i> and <i>Calyptrina striata</i> most closely resemble animal remains; either or both could be the organic sheaths of enidarian scyphopolyps, although an algal origin cannot be ruled out for <i>P. minor</i>. Despite exceptional preservation, the Miaohe assemblage contains no macroscopic fossils that can be interpreted with confidence as bilaterian animals. In combination with other late Neoproterozoic and Early Cambrian body fossils and trace fossils, the Doushantuo assemblage supports the view that body-plan diversification within bilaterian phyla was largely a Cambrian event. en
dc.description.sponsorship Organismic and Evolutionary Biology en
dc.language.iso en_US en
dc.publisher Society of Economic Paleontologists and Mineralogists en
dc.relation.isversionof http://dx.doi.org/10.1666/0022-3360(2002)076<0347:MCCIAT>2.0.CO;2 en
dc.relation.hasversion http://www.paleo.geos.vt.edu/Shuhai/Reprints/XiaoMiaoheBiotaJP2002.pdf
dash.license META_ONLY
dc.title Macroscopic Carbonaceous Compressions in a Terminal Proterozoic Shale: A Systematic Reassessment of the Miaohe Biota, South China en
dc.relation.journal Journal of Paleontology en
dash.depositing.author Knoll, Andrew
dash.embargo.until 10000-01-01

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  • FAS Scholarly Articles [6463]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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