THE FIRST REPORT OF CRYPTOSPORE ASSEMBLAGES OF LATE ORDOVICIAN IN IRAN, GHELLI FORMATION, EASTERN ALBORZ

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MAHMOUDI MARYAM; SABOURI JAFAR; ALIMOHAMMADIAN HABIB; MAJIDIFARD MAHMOUD REZA

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Journal: GEOPERSIA Year:2014 | Volume:4 | Issue:2 Page(s): 125-140

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Title

THE FIRST REPORT OF CRYPTOSPORE ASSEMBLAGES OF LATE ORDOVICIAN IN IRAN, GHELLI FORMATION, EASTERN ALBORZ

Author(s)

MAHMOUDI MARYAM | SABOURI JAFAR | ALIMOHAMMADIAN HABIB | MAJIDIFARD MAHMOUD REZA | Issue Writer Certificate

Keywords

CRYPTOSPOREQ2

LATE ORDOVICIANQ2

GHELLI FORMATIONQ2

EASTERN ALBORZQ2

IRANQ2

Abstract

For the first time, an assemblage of CRYPTOSPOREs, which includes 10 species belonging to nine genera, from the Upper Ordovician strata, is being reported, in IRAN. These CRYPTOSPORE assemblages were recovered from the upper part of GHELLI FORMATION., from the EASTERN ALBORZ Mountain range. These peri-Gondwanan CRYPTOSPOREs have been classified based on their morphology (monad, true dyad, pseudodyad, true attached, and loose tetrads). The results of the present study support previous findings that there are no significant differences between similar-aged CRYPTOSPORE assemblages of the peri-Gondwanan, Baltic provinces and other parts of the world. Based on the presence of the chitinozoan index of the northern Gondwana (Spinachitina oulebsiri), the index acritarchs, and the present CRYPTOSPOREs, a late Hirnantian (Late Ordovician) age is proposed to the top of the GHELLI FORMATION. The CRYPTOSPOREs seem to be transported from an adjacent land area and the lack of land-derived elements in the up-section may indicate an increased distance offshore.

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APA: Copy

MAHMOUDI, MARYAM, SABOURI, JAFAR, ALIMOHAMMADIAN, HABIB, & MAJIDIFARD, MAHMOUD REZA. (2014). THE FIRST REPORT OF CRYPTOSPORE ASSEMBLAGES OF LATE ORDOVICIAN IN IRAN, GHELLI FORMATION, EASTERN ALBORZ. GEOPERSIA, 4(2), 125-140. SID. https://sid.ir/paper/250616/en

Vancouver: Copy

MAHMOUDI MARYAM, SABOURI JAFAR, ALIMOHAMMADIAN HABIB, MAJIDIFARD MAHMOUD REZA. THE FIRST REPORT OF CRYPTOSPORE ASSEMBLAGES OF LATE ORDOVICIAN IN IRAN, GHELLI FORMATION, EASTERN ALBORZ. GEOPERSIA[Internet]. 2014;4(2):125-140. Available from: https://sid.ir/paper/250616/en

IEEE: Copy

MARYAM MAHMOUDI, JAFAR SABOURI, HABIB ALIMOHAMMADIAN, and MAHMOUD REZA MAJIDIFARD, “THE FIRST REPORT OF CRYPTOSPORE ASSEMBLAGES OF LATE ORDOVICIAN IN IRAN, GHELLI FORMATION, EASTERN ALBORZ,” GEOPERSIA, vol. 4, no. 2, pp. 125–140, 2014, [Online]. Available: https://sid.ir/paper/250616/en

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