ABSTRACT The upper Middle to basal Upper Ordovician succession (Darriwilian to Sandbian) of the Fågelsång-3 drill core provides new important information on the graptolite biostratigraphy of Scania, southern Sweden. The Scanian succession is known largely from drill cores and a few scattered outcrops exposing only parts of the interval. The Darriwilian Almelund Shale Formation overlies the Komstad Limestone Formation and has a thickness of more than 42 m in the Fågelsång-3 drill core. A seemingly complete succession through the Holmograptus lentus, Nicholsonograptus fasciculatus, Pterograptus elegans, Pseudamplexograptus distichus and Jiangxigraptus vagus biozones can be recognized. Some intervals are poorly documented by their respective graptolite faunas or show extensive post-depositional tectonic deformation. The Nemagraptus gracilis Biozone of earliest Sandbian age cannot be positively identified, even though fragments of Nemagraptus have been discovered in the uppermost part of the Almelund Shale below the Fågelsång Phosphorite Bed.

中文翻译：

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瑞典斯堪尼亚 Fågelsång-3 钻芯奥陶系 Almelund 和 Sularp 页岩地层的笔石生物地层学

摘要 Fågelsång-3 钻芯的中上至基底上奥陶世系列（Darriwilian 至 Sandbian）为瑞典南部斯堪尼亚笔石生物地层学提供了新的重要信息。斯堪尼亚层序主要是从钻芯和一些仅暴露部分层段的分散露头中得知的。Darriwilian Almelund 页岩组位于 Komstad 石灰岩组之上，在 Fågelsång-3 钻芯中的厚度超过 42 m。可以识别出通过 Holmograptus lentus、Nicholsonograptus fasciculatus、Pterograptus elegans、Pseudamplexograptus distichus 和 Jiangxigraptus vagus 生物区的看似完整的序列。一些区间没有被它们各自的笔石动物群记录下来，或者显示出广泛的沉积后构造变形。