Articles

GIVETIAN–FRASNIAN BOUNDARY CONODONTS FROM KERMAN PROVINCE, CENTRAL IRAN

HOSSEIN GHOLAMALIAN, VACHIK HAIRAPETIAN, NAHID BARFEHEI, SOHEYLA MANGELIAN, PARVANEH FARIDI

Abstract


The Middle - Late Devonian boundary is investigated based on twenty-two conodont species and subspecies from three sections in the north and west of Kerman, southeastern central Iran. Upper Givetian - lower Frasnian carbonates of the basal part of the Bahram Formation transgressively overlie the sandstone beds of the top of (?) Early - Middle Devonian Padeha Formation. These massive skeletal limestones encompass the G-F boundary. The base of Frasnian is identified by the appearance of early forms of Ancyrodella rotundiloba . It helps to compare our biozones to those of global stratotype in southern France. A new species, Polygnathus hojedki n. sp. is described here. New range is suggested for P. praepolitus .


Keywords

Iran, Devonian, Givetian - Frasnian boundary; conodonts; Biostratigraphy

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DOI: https://doi.org/10.13130/2039-4942/6028

NBN: http://nbn.depositolegale.it/urn%3Anbn%3Ait%3Aunimi-15344

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