Kanapoi, Kenya, has yielded the earliest evidence of the genus Australopithecus, Australopithecus anamensis. Renewed fieldwork from 2012 through 2015 yielded 18 new fossils attributable to this species. The new specimens include the second maxillary fragment known from a Kanapoi hominin and the first from a relatively young adult. The new maxilla has the distinctive rounded nasal aperture margin characteristic of A. anamensis. A second partial proximal tibia from the site is the first postcranial element from a small A. anamensis individual. A new partial mandible and complete mandibular dentition display distinctive Kanapoi hominin morphology, but the mandible displays a larger trigonid on its fourth premolar than any known so far. Two new complete sets of mandibular incisors are also notably large, especially the lateral ones, a distinctive feature of A. anamensis compared with Australopithecus afarensis. The new fossils also highlight the distinctive morphology of Kanapoi A. anamensis compared to later hominins.

肯尼亚的卡纳波伊（Kanapoi）发现了南方古猿（Australopithecus anamensis ）属的最早证据。从 2012 年到 2015 年重新进行的实地考察产生了 18 种可归因于该物种的新化石。新标本包括来自卡纳波伊人的第二个上颌骨碎片和第一个来自相对年轻的成年人的上颌骨碎片。新上颌骨具有A. anamensis独特的圆形鼻孔边缘特征。来自该部位的第二个部分近端胫骨是来自小型A. anamensis的第一个颅后元件个人。一种新的部分下颌骨和完整的下颌骨牙列显示出独特的卡纳波伊人形态，但下颌骨在其第四前磨牙上显示出比目前已知的任何一个更大的三角骨。两套新的完整的下颌切牙也非常大，尤其是侧切牙，这是A. anamensis与Australopithecus afarensis相比的一个显着特征。与后来的古人类相比，这些新化石还突出了 Kanapoi A. anamensis的独特形态。