NIGPAS OpenIR  > 中国科学院南京地质古生物研究所
Macroscopic carbonaceous compressions in a terminal Proterozoic shale: A systematic reassessment of the Miaohe biota, south China
Xiao, SH; Yuan, XL (袁训来); Steiner, M; Knoll, AH
2002-03-01
Source PublicationJOURNAL OF PALEONTOLOGY
ISSN0022-3360
Volume76Issue:2Pages:347-376
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 Aggregatosphaera miaoheensis 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, Protoconites minor and Calyptrina striata 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 P. minor. 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.

Language英语
WOS KeywordNeoproterozoic Doushantuo Formation ; Burgess-shale ; Fossil Preservation ; Cambrian Explosion ; Metazoan Phyla ; Animal Embryos ; Baffin Island ; Microfossils ; Evolution ; Megafossils
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000174515600012
PublisherPALEONTOLOGICAL SOC INC
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/1146
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorXiao, SH
Affiliation1.Tulane Univ, Dept Geol, New Orleans, LA 70118 USA
2.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
3.Tech Univ Berlin, Inst Geol & Palaontol, D-13355 Berlin, Germany
4.Harvard Univ, Bot Museum, Cambridge, MA 02138 USA
Recommended Citation
GB/T 7714
Xiao, SH,Yuan, XL ,Steiner, M,et al. Macroscopic carbonaceous compressions in a terminal Proterozoic shale: A systematic reassessment of the Miaohe biota, south China[J]. JOURNAL OF PALEONTOLOGY,2002,76(2):347-376.
APA Xiao, SH,Yuan, XL ,Steiner, M,&Knoll, AH.(2002).Macroscopic carbonaceous compressions in a terminal Proterozoic shale: A systematic reassessment of the Miaohe biota, south China.JOURNAL OF PALEONTOLOGY,76(2),347-376.
MLA Xiao, SH,et al."Macroscopic carbonaceous compressions in a terminal Proterozoic shale: A systematic reassessment of the Miaohe biota, south China".JOURNAL OF PALEONTOLOGY 76.2(2002):347-376.
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