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Mortoniceratinae (Ammonitina) from the Upper Albian (Cretaceous) of the Atamir Formation, Koppeh Dagh Mountains, NE Iran

机译:伊朗东北部科佩·达格山脉Atamir组上白垩统上的Mortoniceratinae(Ammonitina)

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摘要

Numerous well preserved representatives of the subfamily Mortoniceratinae H. DouVILLE, 1912 are described from three localities in the Koppeh Dagh Mountains, north of Mashad, NE Iran. The fauna consists of Mortoniceras (Mortoniceras) inflatum (J. SOWERBY, 1818), Mortoniceras (Mortoniceras) pricei (SPATH, 1922), Mortoniceras (Mortoniceras) fissicostatum SPATH, 1932, Mortoniceras (Deiradoceras) bipunctatum SPATH, 1933, and Mortoniceras (Deiradoceras) cunningtoni SPATH, 1933. All taxa are recorded for the first time from Iran. The ammonite assemblage indicates the boundary interval of the Hysteroceras varicosum Subzone to the Callihoplites auritus Subzone of the upper Mortoniceras inflatum Zone of the lower Upper Albian. It comes from a slightly condensed horizon at the base of a major transgressive interval which has its equivalents in European basins.
机译:来自伊朗东北部马沙德北部Koppeh Dagh山区的三个地方描述了保存完好的Mortoniceratinae H. DouVILLE家族的代表(1912年)。该动物群由胀气的Mortoniceras(Mortoniceras)(J. SOWERBY,1818),Mortoniceras(Mortoniceras)pricei(SPATH,1922),Mortoniceras(Mortoniceras)fissicostatum SPATH,1932,Mortoniceras(Deiradocerasras)bipunctatum SPATH,1933(和) )cunningtoni SPATH,1933年。所有分类单元都首次从伊朗记录下来。炸药的组合指示了下阿尔卑下层上层Mortoniceras inflatum区域的水纹子宫亚种与to属亚种的边界间隔。它来自主要海侵间隔底部的略微凝结的地平线,在欧洲海盆中具有与之相当的水平。

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