Klein (1) challenges two interpretations in Niespolo et al. (2). Regarding his first point, we maintain that Ysterfontein 1 (YFT1) does provide the oldest known example of full coastal adaptation as indicated by the presence of shell middens (cf. ref. 3). Klein inaccurately characterizes the age of the deepest shell midden layers at Klasies River Main (KRM) given in ref. 4. While other workers identify even the oldest light brown sand (LBS) layer at KRM as similar in age or younger than the deepest deposits at YFT1 (cf. refs. 5 and 6), the reference cited by Klein (4) and subsequent dating efforts show that the shell midden lenses in beach-sand …

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回复克莱因：Ysterfontein 1 shell midden（南非）和沿海适应的古代[社会科学]

Klein ( 1 ) 对 Niespolo 等人的两种解释提出质疑。( 2 )。关于他的第一点，我们认为 Ysterfontein 1 (YFT1) 确实提供了已知最古老的完全沿海适应的例子，如贝壳中的存在所示（参见参考文献3）。Klein 不准确地描述了参考文献中给出的 Klasies River Main (KRM) 最深贝壳中层的年龄。4 . 虽然其他工人甚至认为 KRM 最古老的浅棕色砂层 (LBS) 与 YFT1 最深的矿床年龄相似或更年轻（参见参考文献5和6），但 Klein 引用的参考文献 ( 4 ) 和随后的测年工作表明海滩沙中的贝壳中透镜……