Abstract: New materials of Sinohippus from the Late Miocene"Hipparion Red Clay"of Gansu and Nei Mongol, China, are described and identified as Sinohippus robustus sp. nov.A review of the known specimens of Sinohippus indicates that this genus is generically distinct from other members of Anchitheriinae. The sympatry of the low-crowned Sinohippus with the high-crowned Hipparion indicates that there should have been a small quantity of shrub distributed during the Late Miocene in northern China.

摘要： 结合甘肃临夏盆地和内蒙古四子王旗发现的新材料及之前发现的材料，辨认出中国晚中新世三趾马地层中的大型中华马与其他安琪马类的显著区别：下门齿前倾，第一对下门齿大而粗壮，第二对比第一对稍小，第三对非常小；前臼齿列及臼齿列的宽度分别向前和向后明显变小；下前脊长，下外谷与齿列长轴近垂直；m3第三叶退化。确定Sinohippus为一有效属。重新对中国晚中新世的安琪马类材料整理和分类，建立新种Sinohippus robustus。简要分析了低冠的中华马与高冠的三趾马共生的生态学意义。