Research Article| April 01, 2003 PALEOBIOGEOGRAPHIC ANALYSIS OF YAHTASHIAN TO MIDIAN FUSULINACEAN FAUNAS OF THE SURMAQ FORMATION IN THE ABADEH REGION, CENTRAL IRAN Fumio Kobayashi; Fumio Kobayashi 1 Institute of Natural and Environmental Sciences, Himeji Institute of Technology, Sanda, Hyogo, 669-1546, Japan. E-mail: kobayasi@nat-museum.sanda.hyogo.jp Search for other works by this author on: GSW Google Scholar Ken-Ichi Ishii Ken-Ichi Ishii 2 Hayashibara Museum of Natural Sciences, Shimoishii-1, Okayama, 700-0907, Japan Search for other works by this author on: GSW Google Scholar Author and Article Information Fumio Kobayashi 1 Institute of Natural and Environmental Sciences, Himeji Institute of Technology, Sanda, Hyogo, 669-1546, Japan. E-mail: kobayasi@nat-museum.sanda.hyogo.jp Ken-Ichi Ishii 2 Hayashibara Museum of Natural Sciences, Shimoishii-1, Okayama, 700-0907, Japan Publisher: Cushman Foundation for Foraminiferal Research Received: 07 Oct 2001 Accepted: 06 Feb 2002 First Online: 03 Mar 2017 Online ISSN: 1943-264X Print ISSN: 0096-1191 © 2003 Journal of Foraminiferal Research Journal of Foraminiferal Research (2003) 33 (2): 155–165. https://doi.org/10.2113/0330155 Article history Received: 07 Oct 2001 Accepted: 06 Feb 2002 First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Fumio Kobayashi, Ken-Ichi Ishii; PALEOBIOGEOGRAPHIC ANALYSIS OF YAHTASHIAN TO MIDIAN FUSULINACEAN FAUNAS OF THE SURMAQ FORMATION IN THE ABADEH REGION, CENTRAL IRAN. Journal of Foraminiferal Research 2003;; 33 (2): 155–165. doi: https://doi.org/10.2113/0330155 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyJournal of Foraminiferal Research Search Advanced Search Abstract Fusulinaceans consisting of 56 species assignable to 30 genera are distinguished in the Surmaq Formation in the Abadeh region, central Iran. Based on the stratigraphic distribution of fusulinaceans, the Surmaq Formation is divisible into six biostratigraphic zones from lower to upper: Darvasites ordinatus, Pseudofusulina quasifusuliniformis, Eopolydiexodina percica, Afghanella schencki, Neoschwagerina occidentalis, and Chusenella abichi. Faunal composition and comparison between the Abadeh region, South West Asian, and Mediterranean Sea regions indicates that the first zone is Yahtashian in age, the second and third are definitely indeterminable, the fourth and fifth are Murgabian, and the last is Midian. Fusulinacean faunas of the Pseudofusulina quasifusuliniformis, Eopolydiexodina persica, and Chusenella abichi Zones are less diversified compared to the two intervening zones which have many neoschwagerinids and verbeekinids.The Surmaq fusulinaceans, characterized by Eopolydiexodina and Afghanella, are one of the most widely represented Middle Permian faunas in the South West Asian and Mediterranean Sea regions, belonging to the western part of the Western Tethyan paleobiogeographic province. Murgabian and Midian faunas in this province differ from those of the eastern Tethyan Province in having only rare occurrences of Colania and Lepidolina, and from the Panthalassan Province in having Afghanella and Sumatrina. Permian carbonate deposition began in Yahtashian time throughout the Cimmerian terranes including the Abadeh region. Differences in fusulinacean faunal composition and species diversity in the Surmaq Formation are closely associated with differences in limestone lithologies. For example, the Chusenella abichi Zone is present mostly in lime-mudstone and wackestone that are partly dolomitized. These paleobiogeographic and lithologic chararacters have implications for the northward movement of this tectonic provenance, for the rift-drift-collision history of the western part of the Cimmerian Continent, and also for the evolution and extinction of fusulinaceans in Permian time. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.