Wood B A, Van Noten F L
Am J Phys Anthropol. 1986 Jan;69(1):117-27. doi: 10.1002/ajpa.1330690113.
A newly discovered adult hominid mandible (BK 8518) from Baringo, Kenya, is described and assessed. The corpus, many of the tooth crowns, and most of the left ascending ramus are preserved. The teeth are heavily and asymmetrically worn. Compared with BK 67 (the 1966 mandible) the body of BK 8518 is more robust; the internal symphyseal buttressing is more pronounced; the M3s have seven cusps and exceed the M2s in size. There are no compelling reasons, however, to attribute the two mandibles to different taxa and, in view of the lack of any comprehensive taxonomic diagnosis for Homo erectus, "erectus-like," and habiline mandibular remains, the new specimen is also best regarded as Homo sp. indet. (aff. erectus).
对新发现的来自肯尼亚巴林戈的一具成年原始人类下颌骨（BK 8518）进行了描述和评估。下颌体、许多牙冠以及大部分左升支得以保存。牙齿磨损严重且不对称。与BK 67（1966年发现的下颌骨）相比，BK 8518的下颌体更粗壮；联合部内侧的支撑更为明显；M3有七个牙尖且尺寸超过M2。然而，没有令人信服的理由将这两具下颌骨归为不同的分类单元，并且鉴于缺乏对直立人、“类直立人”以及能人下颌骨遗骸的全面分类诊断，新标本也最好被视为未定种的原始人类（类似直立人）。
