Reinvestigation of the Kushk and Chahmir areas (Bafq and Behabad regions) of central Iran has yielded a diverse assemblage of Ediacaran fossils, including several new species, just prior to the Cambrian explosion of complex animals. The Kushk series consists mainly of shallow marine carbonate deposits followed by deep-water calcareous marine shales. Ediacaran fossils occur commonly in the shale deposits and include biostratigraphically-important taxa Cloudina and Corumbella, which confirms a latest Ediacaran age for these deposits, the youngest examples of Kimberellomorphs (stem-group molluscs) that helps bridge the gap between their first occurrence in the middle-Ediacaran and the crown diversification in the Cambrian, and likely sponges, which are rare prior to the Cambrian.

中文翻译：

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来自伊朗中部的Ediacaran化石的不同集合。

在复杂动物的寒武纪爆发之前，对伊朗中部的库什克和查米尔地区（巴夫克和贝哈巴德地区）进行的重新调查产生了多种多样的埃迪亚卡拉安化石，包括几种新物种。Kushk系列主要包括浅海碳酸盐沉积物，其次是深水钙质海相页岩。Ediacaran化石普遍存在于页岩矿床中，包括生物地层学上重要的生物分类群Cloudina和Corumbella，这证实了这些矿床的最新Ediacaran年龄，即金伯利洛类（茎类软体动物）的最年轻例子，有助于弥合它们在首次发现时的差距。寒武纪中埃迪卡拉阶和冠的多样化，还有可能是海绵，这在寒武纪之前是罕见的。