A new and precisely defined chronometric subdivision of the Badenian (Middle Miocene, regional stage of Central Paratethys) is proposed. This uses global events, mainly geomagnetic polarity reversals as correlated chronometric boundaries, supported by climatic and sea-level changes in addition to isotope events and biostratigraphic data. The Karpatian/ Badenian boundary lies at 16.303 Ma, at th...

On the basis of stratigraphic ranges reported calcareous nannfossils for several species, two sections Shiranish Formation from Hiran in Erbil Governorate and Smaqoli area Sulaimaniya Governorate, Northern Iraq, are analyzed. Four biozones visible examined region, grouped as follows oldest to youngest: Uniplanarius gothicus Interval zone; Tranolithus phacelosus Rienhardtites lives Micula murus ...

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