描述了印度北部比拉斯布尔区喜马偕尔邦Haritalyangar地区中西瓦利克的猪类化石上、下颌及牙齿材料。Haritalyangar地区以晚中新世动物群、古人类和其他灵长类动物的多样性而闻名。研究材料为作者之一(ARS)在该地区多次野外季采集的猪类化石；猪类化石地点和最近报道的长鼻类化石地点(含古猿化石地点)均被绘制在地图上。这些化石地点广泛分布于Makkan Khad到 Sir Khad区域内的“Lower Alternations”层和“Upper Alternations”层。猪类化石被鉴定为3个属：原河猪属Propotamochoerus (P. hysudricus)、河马齿河猪属Hippopotamodon (H. sivalense) 和云南猪属Yunnanochoerus (Y. dangari)。 Propotamochoerus hysudricus 为中西瓦利克最常见的化石猪类，新发现的Yunnanochoerus dangari进一步证明这种古猪类化石仅在Haritalyangar地区有少量遗存。Haritalyangar地区新发现的猪类化石组成与巴基斯坦的Nagri动物群相近。基于猪类化石进行的Potwar高原年代地层学对比表明，Haritalyangar地区的“Lower Alternations”层的年龄范围为~10-9 Ma, 与最新的磁极性地层学年代范围很接近。

• Fig. 1  Map of the region of Haritalyangar showing the localities that yielded fossil suoids The hominoid and proboscidean bearing localities are also indicated. Suoid Localities: 1. Ghori S; 2. Kutla/Karan E; 6. Kherin W; 10. Dholkhana lower; 11. Dholkhana Upper; 14. Barog S/Cap-Ridge; 19. Hari mid Scarp; 23. Dangar East (Dhagiala); 26. Targhel SW. Dashed lines: limits between the formations (modified after Johnson et al., 1983); B. Boulder Conglomerate; L. ‘Lower Alternations’ (=equivalent to the Nagri Fm. of the Siwaliks of Pakistan); N. Nahan Formation (=equivalent to the Chinji Fm. of the Siwaliks of Pakistan); U. ‘Upper Alternations’ (= equivalent to the Dhok Pathan Fm. of the Siwaliks of Pakistan)
• Table 1  Upper teeth measurements of the new suoid material from Haritalyangar, India (mm)
• Table 2  Permanent lower teeth measurements of the new suoid material from Haritalyangar, India (mm)
• Fig. 2  New material of Propotamochoerus hysudricus and Hippopotamodon sivalense from Haritalyangar A-H. Propotamochoerus hysudricus: A. HTA-8a, right mandible with p4-m3 (p2-p3 not displayed); B. HTA-8b, left mandible with p2-m3; C. HTA-42a, left maxilla with P3-M3; D. HTA-42b, right maxilla with P4-M3; E. HTA-140a, right maxilla with M2-M3; F. HTA-140b, right maxilla with M1-M3; G, H. left dp4, HTA-7 (G) and interpretive drawing (H); I, J. Hippopotamodon sivalense, right dp4, HTA-63 (I) and interpretive drawing (J). All specimens are figured in occlusal view. Scale bars equal 1 cm Abbreviations: E. entoconid; EnPa. endoparaconulid; H. hypoconid; Hul. hypoconulid; M. metaconid; Mes. mesoconulid; P. protoconid; Pa. paraconid; Pprm. preprimonid; Prm. primonid
• Table 3  Estimated body masses for the Haritalyangar suoids based on regressions of Legendre (1989) and Damuth (1990) (kg)