NIGPAS OpenIR  > 中国科学院南京地质古生物研究所
Eumetazoan fossils in terminal Proterozoic phosphorites?
Xiao, SH; Yuan, XL (袁训来); Knoll, AH
2000-12-05
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
Volume97Issue:25Pages:13684-13689
Abstract

Phosphatic sedimentary rocks preserve a record of early animal life different from and complementary to that provided by Ediacaran fossils in terminal Proterozoic sandstones and shales. Phosphorites of the Doushantuo Formation. South China. contain eggs, egg cases, and stereoblastulae that document animals of unspecified phylogenetic position; small fossils containing putative spicules may specifically record the presence of sponges. Microfossils recently interpreted as the preserved gastrulae of cnidarian and bilaterian metazoans can alternatively be interpreted as conventional algal cysts and/or egg Eases modified by diagenetic processes known to have had a pervasive influence on Doushantuo phosphorites. Regardless of this interpretation, evidence for Doushantuo eumetazoans is provided by millimeter-scale tubes that display tabulation and apical budding characteristic of some Cnidaria, especially the extinct tabulates. Like some Ediacaran remains, these small, benthic, colonial fossils may represent stemgroup eumetazoans or stem-group cnidarians that lived in the late Proterozoic ocean.

Language英语
WOS KeywordMicrofossils ; Preservation ; Origins ; China
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000165728800043
PublisherNATL ACAD SCIENCES
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/817
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorKnoll, AH
Affiliation1.Harvard Univ, Bot Museum, Cambridge, MA 02138 USA
2.Tulane Univ, Dept Geol, New Orleans, LA 70118 USA
3.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Xiao, SH,Yuan, XL ,Knoll, AH. Eumetazoan fossils in terminal Proterozoic phosphorites?[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2000,97(25):13684-13689.
APA Xiao, SH,Yuan, XL ,&Knoll, AH.(2000).Eumetazoan fossils in terminal Proterozoic phosphorites?.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,97(25),13684-13689.
MLA Xiao, SH,et al."Eumetazoan fossils in terminal Proterozoic phosphorites?".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 97.25(2000):13684-13689.
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