Abstract: The earliest fossil suoid collection of the world from Guangxi, China, is identified as four taxa. Eocenchoerus gen. nov. is assigned to Suidae based primarily on the presence of a talon on M3. The Eocene suid indicates that the origin of Suidae is as early as that of Palaeochoeridae and Tayassuidae. The family Palaeochoeridae is accepted to group the Old World palaeochoerids, Siamochoerus viriosus sp. nov. and Huaxiachoerus guangxiensis gen. et sp. nov. are included in it, and Huaxiachoerus is considered close to Cynorca. A single upper molar is identified as a tayassuid, and is close to the typical tayassuid Perchoerus. If Cynorca and Perchoerus are indeed the root members of the two major evolutionary radiation of the World tayassuids, the New World tayassuids should evolve from their Old World ancestors. The diversified suoid group in the Asian Late Eocene suggests the split of Suidae, Palaeochoeridae and Tayassuidae might begin at the Middle Eocene or earlier period.

摘要： 描述了广西百色及永乐盆地发现的中始新世最晚期一晚始新世的猪类化石。这批已知最早的猪超科化石，大大丰富了亚洲地区的早期猪类，对了解全球猪类的早期演化有着重要价值。广西的材料被确定为两个新属新种:萨氏始新猪Eocenchoerus savagei和广西华夏猪Huaxiachoerus guangxiensis，一个新种:粗壮暹罗猪Siamochoerus viriosus和一个未定属种:Tayassuidae gen. et sp. indet.。加上已发表的单尖旅猪Odiochoerus uniconus，