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Hadi Jahangir, Mansoureh Ghobadi Pour, Alireza Ashuri & Arash Amini, December 2015. Terminal Cambrian and Early Ordovician (Tremadocian) conodonts from Eastern Alborz, north-central Iran. Alcheringa ##, ###-###. ISSN 0311-5518.

Uppermost Cambrian (Furongian) and Lower Ordovician (Tremadocian) deposits of eastern Alborz in northern Iran contain several successive low- to moderate-diversity conodont associations including 13 genera and 19 species of euconodonts, paraconodonts and protoconodonts, which define six biozones: 1, the Proconodontus muelleri; 2, Eoconodontus notchpeakensis; 3, Cordylodus andresi; 4, Cordylodus proavus; 5, Paltodus deltifer; and 6, Paroistodus proteus zones. With the exception of Cordylodus andresi, which is otherwise known from Baltoscandia and from the Oaxaquia terrane (Mexico), all index-taxa are geographically widespread, allowing long-range correlation within the Cold Domain or the North Atlantic Province, and in particular with Baltica. Invasion of euconodonts in the Alborz region, defined by the first occurrence of Proconodontus muelleri, coincides closely with a steady rise in sea level and termination of carbonate sedimentation, whereas the transition from the Proconodontus muelleri to Eoconodontus notchpeakensis zones occurs during a highstand interval unlike in Laurentian sequences. The interval corresponding to the Cordylodus andresi and Cordylodus proavus zones, and the transition from the Paltodus deltifer to Paroistodus proteus zones coincided with unstable sea levels and the formation of shoal complexes. The lower boundary of the Floian Stage can be provisionally placed slightly below the first documented occurrence of Acodus sp. cf. A. kechikaensis, somewhat below the second unit of andesitic lava flows in the Simeh-Kuh section.

Hadi Jahangir [] and Alireza Ashuri [] Department of Geology, Faculty of Sciences, Ferdowsi University, Azadi Square, Mashhad 91775-1436, Iran; Mansoureh Ghobadi Pour* [; ] and Arash Amini [], Department of Geology, Faculty of Sciences, Golestan University, Gorgan 49138-15739, Iran. *Also affiliated with Department of Geology, National Museum of Wales, Cathays Park, Cardiff CF10 3NP, UK.  相似文献   

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Existing accounts of Kurdish nationalism can be mapped onto the main theories of nationalism, that is, primordialism, ethnosymbolism and modernism. These theories, however, suffer, respectively, from essentialism, circularity and aporia, manifest in their common inability to digest the Janus-like character of nations, that is, their display of simultaneous modernity and antiquity. This paper develops an alternative account through a critical application of the theory of ‘uneven and combined development’ (UCD) to the Republic of Kurdistan of 1946. The argument unfolds in three steps. First, we argue that the failure of mainstream theories of nationalism to explain the nation's historical ambiguity lies in their ‘internalism’. Second, we show that UCD overcomes internalism through its plural social ontology and enables a retheorising of nations as interactive products of the geopolitical mediation of historical capitalism's expansion through societal multiplicity. Central to this process was the emergence of nationalism as a defensive and emulative ideology of geopolitical self-preservation. This involved reversing the sociological and political moments of the originary formation of the British imperial nation. We argue that this historical reversal underpins the Janus-like form of nations, including the Kurdish nation. Third, we substantiate the argument through a brief case study of the Republic of Kurdistan.  相似文献   
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