Abstract In this paper we present a revision of the lithic industries of El Abra sites (Sabana de Bogota, Eastern Cordillera, Colombia), among the most ancient and significant sites of Colombia. Dated to 12,400 ± 160 years BP, El Abra is an important reference for the prehistory of the country. Our review mostly deals with the: a) methodological approach adopted for the study of the lithic industry; b) interpretation of the lithic industry; c) chrono-stratigraphy. In 2017, 2019 we presented the revision of the lithic assemblages of the oldest levels of El Abra sites (Muttillo et al., 2019, 2017); here we integrate and complete the revision with the analysis of the lithic assemblages of the upper levels. This is the first revision of the historical lithic collections, adopting a technological approach and crossing the data with the chrono-stratigraphic context. Our results have highlighted several discrepancies and critical elements contained in previous studies, that mostly affect not only the interpretation of the lithic industries but also the chronology of the site, that turned out to be more recent than previously assumed, for at least three thousand years.

中文翻译：

---

重新审视 El Abra 遗址（Sabana de Bogotá，哥伦比亚，南美洲北部）的石器工业。对其意义和年代的影响

摘要 在本文中，我们对哥伦比亚最古老和最重要的遗址之一的 El Abra 遗址（Sabana de Bogota，Eastern Cordillera，Colombia）的石器工业进行了修订。可追溯到 12,400 ± 160 年 BP，El Abra 是该国史前史的重要参考。我们的评论主要涉及：a）用于研究石器工业的方法论方法；b) 石器行业解读；c) 年代地层学。在 2017 年和 2019 年，我们提出了对最古老的 El Abra 遗址岩层组合的修订（Muttillo 等人，2019 年，2017 年）；在这里，我们通过对上层石器组合的分析整合并完成修订。这是历史石器收藏的第一次修订，采用技术方法并将数据与年代地层背景交叉。我们的结果突出了先前研究中包含的几个差异和关键要素，这些差异和关键要素不仅主要影响对石器工业的解释，而且还影响该遗址的年代顺序，结果证明比以前假设的时间更近，至少有三千年.