Stratigraphy of the Alveolina elliptica group from the Middle Eocene of Iran:Calibration with calcareous nannofossils biozones and description of Alveolina ozcani n. sp.  

作　　者：Mehdi Hadi Lorenzo Consorti Ali Bahrami Mohammad Parandavar Saeed Khorramdel 

机构地区：[1]Department of Geology,Faculty of Sciences,University of Isfahan,Isfahan,Iran [2]Institute of Marine Sciences(ISMAR-CNR),Area Science Park,Basovizza,34149 Trieste,Italy [3]National Iranian Oil Company,Exploration Directorate,Sheikh Bahaei Square,Tehran,Iran [4]Department of Geology,Faculty of Science,Ferdowsi University of Mashhad,Mashhad,Iran

出　　处：《Journal of Palaeogeography》2024年第1期54-79,共26页古地理学报（英文版）

基　　金：supported financially by the Vice Chancellor for Research and Technology at University of Isfahan。

摘　　要：Precise taxonomy and the chronostratigraphic calibration of the Middle Eocene Alveolina from Central Iran is here undertaken from the Chah-Talkh section of the southern Sabzevar region(Central Iran). We have identified Alveolina kieli, Alveolina stercusmuris and Alveolina nuttalli along with the new species Alveolina ozcani n. sp. that we include into the Alveolina elliptica group. We have also found Nummulites uroniensis, Nummulites obesus and Nummulites cf. verneuili and associated calcareous nannofossils that look reliable to make thoughtful correlations with the Shallow Benthic Zones(SBZ). The foraminiferal biostratigraphy suggests an assignment to the upper part of the lower Lutetian-lower part of the middle Lutetian,SBZ13(Middle Eocene), further strengthened through the identification of the calcareous nannofossil NP14b-NP15b or CNE8-CNE10 biozones, providing a solid correlation with the global stratigraphic standards.

关 键 词：Alveolina Calcareous nannofossil Central neo-tethys Central Iran Middle Eocene BIOSTRATIGRAPHY 

分 类 号：Q911.2[天文地球—古生物学与地层学] P534.613[生物学—古生物学]