The whole collection of Suidae from Kanapoi is revised in the context of the systematics and evolution of Nyanzachoerus in the Pliocene of Eastern Africa. It contains only two species, Nyanzachoerus kanamensis and Notochoerus jaegeri. The size and morphology of their premolars overlap, but not those of their m3s. No transitional form between them is known in Kenya, but some populations from Uganda and Ethiopia display intermediate characters, suggesting that No. jaegeri could be descended from a kanamensis-like ancestor. However, the cranial remains of No. jaegeri from Kanapoi are insufficient to formally establish the affinities of the species. On the basis of the dentition, Notochoerus euilus could be descended from No. jaegeri. The noticeable absence of Kolpochoerus at Kanapoi (and in the whole Turkana Basin at that time) remains unexplained. The presence of a species with affinity to Nyanzachoerus tulotos at Ekora raises the possibility that uppermost Miocene sediments occur there.

在东部非洲上新世的Nyanzachoerus的系统和演化的背景下，对Kanapoi的Suidae的整个收藏进行了修订。它仅包含两个物种，即Nyanzachoerus kanamensis和Notochoerus jaegeri。它们的前磨牙的大小和形态重叠，但不超过它们的m3。在肯尼亚，它们之间没有过渡形式，但是来自乌干达和埃塞俄比亚的一些种群表现出中间特征，这表明jaegeri可能来自类似kanamensis的祖先。然而，颅骨遗骸号jaegeri从Kanapoi不足以正式建立物种的亲缘关系。根据牙列，Notochoerus euilus可以从以下后裔号jaegeri。Kanapoi（以及当时的整个图尔卡纳盆地）明显没有Kolpochoerus，这仍无法解释。在埃科拉（Ekora）与Nyanzachoerus tulotos有亲和力的物种的存在增加了最中新世沉积物在那里发生的可能性。