The recent investigation of an archaeological site in southwest Nigeria has added new insight into the early human occupation and cultural development in the rainforest of West Africa. In the Iresi Hills, two rockshelters were investigated in 2017 and 2018, and both yielded evidence of Later Stone Age (LSA) occupations. The artifact assemblage reveals two cultural phases—Aceramic LSA and Ceramic LSA. The upper Ceramic LSA phase is characterized by pottery, microliths, ground stone axes, and other lithic finds, while the lower phase bears microliths only. The Ceramic LSA level is dated to 5653–5581 cal BP.

中文翻译：

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伊雷西山上石器时代晚期的职业：尼日利亚西南部的新时代背景

最近对尼日利亚西南部考古遗址的调查为西非热带雨林的早期人类职业和文化发展增添了新的见解。在 Iresi Hills，2017 年和 2018 年对两个岩石避难所进行了调查，都提供了晚石器时代 (LSA) 职业的证据。人工制品组合揭示了两个文化阶段——陶瓷 LSA 和陶瓷 LSA。上陶瓷 LSA 相的特征是陶器、微石、磨石斧和其他石器发现，而下相仅带有微石。陶瓷 LSA 级别的日期为 5653–5581 cal BP。