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Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): implications for depositional environments, ecology and biology of Ediacara organisms.
Interface Focus. 2020 Aug 06; 10(4):20190100.IF

Abstract

The Precambrian Ediacara Biota-Earth's earliest fossil record of communities of macroscopic, multicellular organisms-provides critical insights into the emergence of complex life on our planet. Excavation and reconstruction of nearly 300 m2 of fossiliferous bedding planes in the Ediacara Member of the Rawnsley Quartzite, at the National Heritage Ediacara fossil site Nilpena in South Australia, have permitted detailed study of the sedimentology, taphonomy and palaeoecology of Ediacara fossil assemblages. Characterization of Ediacara macrofossils and textured organic surfaces at the scale of facies, bedding planes and individual specimens has yielded unprecedented insight into the manner in which the palaeoenvironmental settings inhabited by Ediacara communities-particularly hydrodynamic conditions-influenced the aut- and synecology of Ediacara organisms, as well as the morphology and assemblage composition of Ediacara fossils. Here, we describe the manner in which environmental processes mediated the development of taphofacies hosting Ediacara fossil assemblages. Using two of the most common Ediacara Member fossils, Arborea and Dickinsonia, as examples, we delineate criteria that can be used to distinguish between ecological, environmental and biostratinomic signals and reconstruct how interactions between these processes have distinctively shaped the Ediacara fossil record.

Authors+Show Affiliations

Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521, USA.Department of Geology and Geophysics, Yale University, New Haven, CT 06511, USA.Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521, USA.Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521, USA.South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32642047

Citation

Droser, Mary L., et al. "Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): Implications for Depositional Environments, Ecology and Biology of Ediacara Organisms." Interface Focus, vol. 10, no. 4, 2020, p. 20190100.
Droser ML, Tarhan LG, Evans SD, et al. Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): implications for depositional environments, ecology and biology of Ediacara organisms. Interface Focus. 2020;10(4):20190100.
Droser, M. L., Tarhan, L. G., Evans, S. D., Surprenant, R. L., & Gehling, J. G. (2020). Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): implications for depositional environments, ecology and biology of Ediacara organisms. Interface Focus, 10(4), 20190100. https://doi.org/10.1098/rsfs.2019.0100
Droser ML, et al. Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): Implications for Depositional Environments, Ecology and Biology of Ediacara Organisms. Interface Focus. 2020 Aug 6;10(4):20190100. PubMed PMID: 32642047.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): implications for depositional environments, ecology and biology of Ediacara organisms. AU - Droser,Mary L, AU - Tarhan,Lidya G, AU - Evans,Scott D, AU - Surprenant,Rachel L, AU - Gehling,James G, Y1 - 2020/06/12/ PY - 2020/04/20/accepted PY - 2020/7/10/entrez PY - 2020/7/10/pubmed PY - 2020/7/10/medline KW - Arborea KW - Dickinsonia KW - Ediacara Biota KW - Ediacaran Period KW - palaeoenvironment KW - taphonomy SP - 20190100 EP - 20190100 JF - Interface focus JO - Interface Focus VL - 10 IS - 4 N2 - The Precambrian Ediacara Biota-Earth's earliest fossil record of communities of macroscopic, multicellular organisms-provides critical insights into the emergence of complex life on our planet. Excavation and reconstruction of nearly 300 m2 of fossiliferous bedding planes in the Ediacara Member of the Rawnsley Quartzite, at the National Heritage Ediacara fossil site Nilpena in South Australia, have permitted detailed study of the sedimentology, taphonomy and palaeoecology of Ediacara fossil assemblages. Characterization of Ediacara macrofossils and textured organic surfaces at the scale of facies, bedding planes and individual specimens has yielded unprecedented insight into the manner in which the palaeoenvironmental settings inhabited by Ediacara communities-particularly hydrodynamic conditions-influenced the aut- and synecology of Ediacara organisms, as well as the morphology and assemblage composition of Ediacara fossils. Here, we describe the manner in which environmental processes mediated the development of taphofacies hosting Ediacara fossil assemblages. Using two of the most common Ediacara Member fossils, Arborea and Dickinsonia, as examples, we delineate criteria that can be used to distinguish between ecological, environmental and biostratinomic signals and reconstruct how interactions between these processes have distinctively shaped the Ediacara fossil record. SN - 2042-8898 UR - https://www.unboundmedicine.com/medline/citation/32642047/Biostratinomy_of_the_Ediacara_Member__Rawnsley_Quartzite_South_Australia_:_implications_for_depositional_environments_ecology_and_biology_of_Ediacara_organisms_ L2 - https://royalsocietypublishing.org/doi/10.1098/rsfs.2019.0100?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -
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