10/9/2016
Abstract: NEW EDIACARAN FOSSIL DISCOVERIES FROM BAFQ REGION, CENTRAL IRAN (GSA Annual Meeting in Denver, Colorado, USA 2016)
Start |Author Index | View Uploaded Presentations | Meeting Information GSA Annual Meeting in Denver, Colorado, USA 2016 Paper No. 765 Presentation Time: 9:00 AM5:30 PM
NEW EDIACARAN FOSSIL DISCOVERIES FROM BAFQ REGION, CENTRAL IRAN VAZIRI, Seyed Hamid, Department of Geology, North Tehran Branch, Islamic Azad University, P.O. Box 19585851, Tehran, Iran (Islamic Republic of); Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada and LAFLAMME, Marc, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada,
[email protected] The Ediacara biota represents an enigmatic group of large, softbodied organisms with a global distribution in the latest Ediacaran (~579541 Ma). We recently completed extensive field research initiatives targeting the Precambrian Kushk Series in the Bafq region of central Iran, which has yielded a diverse assemblage of Ediacaran fossils. Kushk series crops out widely in the Kushk and Chahmir areas of Bafq region and consists mainly of shallow marine carbonate deposits followed by deepwater calcareous marine shales. Ediacaran fossils have previously been reported from the Lower Shale Member (Chopoghlu Shale) of the Soltanieh Formation from northern Iran, and shale deposits of the Kushk Series in the Bafq area, central Iran. These include the type material of Permedusites changazensis Hahn and Pflug 1980 among other fossils such as “Dickinsonia”, “Palaeoplatoda”, “Pteridinium”, “Spriggina”, “Yazdia”, and Kushkia; however, recent taxonomic and taphonomic studies put into question the reliability of these taxonomic assignments. Our new Ediacaran field sites in the Kushk series showcase a fossil assemblage much more diverse than typically known from the latest Ediacaran systems, and include biostratigraphicallyimportant taxa that aid in confirming a Nama Assemblage age (Late Ediacaran) for these units. Many of these new fossils have a global distribution, with known examples from southwestern USA and China. These new fossil finds help our understanding of the latest Ediacaran prior to the Ediacaran extinction at the hands of metazoans.
Session No. 76Booth# 307 Paleontology, Diversity, Extinction, Origination (Posters) Sunday, 25 September 2016: 9:00 AM5:30 PM Exhibit Hall E/F (Colorado Convention Center) Geological Society of America Abstracts with Programs. Vol. 48, No. 7 doi: 10.1130/abs/2016AM280652 © Copyright 2016 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.
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