Lincombian-Ranisian-Jerzmanowician (LRJ) sites are sparse, and Koziarnia Cave in Poland is one of only few such sites situated at the eastern fringe of LRJ. The aim of the recent study was to obtain new chronostratigraphic data for the LRJ industries due to their extreme scarcity in Central Europe. Although the new fieldworks did not bring new fossil directeur such as bifacial leafpoints, a detail debitage analysis enabled identifying a presence of the ventral thinning chips in layer D, which could be identified as the LRJ assemblage-containing stratum. Besides the LRJ assemblage, strata with traces of Late Middle Palaeolithic and Early Gravettian occupation were found at the site. The radiocarbon dates of Koziarnia samples show that the archaeological settlement represent one of the oldest Gravettian stays north to Carpathians. What is more, these dates demonstrate that the cave had been alternately occupied by humans and cave bears. Additionally the radiocarbon dates indicate rather young chronology of the Jerzmanowician occupation in Koziarnia Cave (c.a. 39-36 ky cal. BP). The results confirm the possibility of long chronology of the LRJ technocomplex, exceeding the Campanian Ignimbrite event.

中文翻译：

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Jerzmanowician的年代地层学。波兰科齐亚尼亚洞穴的新数据

Lincombian-Ranisian-Jerzmanowician（LRJ）地点稀疏，波兰的Koziarnia洞穴是位于LRJ东部边缘的少数几个此类地点之一。最近的研究的目的是获得LRJ行业的新年代地层数据，因为它们在中欧极为稀缺。尽管新的野外工作并未带来新的化石导演例如双面叶点，详细的借记卡分析可以识别D层中腹侧变薄芯片的存在，可以将其识别为包含LRJ组件的层。除LRJ组合外，在该地点还发现了具有中晚期旧石器时代晚期和Gravettian早期占领痕迹的地层。科齐亚尼亚样品的放射性碳年代数据表明，该考古定居点是喀尔巴阡山脉北部最古老的格拉维特人时期之一。更重要的是，这些日期表明该洞穴被人类和洞穴熊交替占据。此外，放射性碳的年代表明科齐亚尼亚洞穴（ca 39-36 ky cal BP）中的耶尔兹曼诺维安占领时期还很年轻。该结果证实了LRJ技术复杂年代超过时间的可能性，超过了Campanian Ignimbrite事件。