Abstract: Allacerops is a comparatively poorly known Asian Oligocene rhinoceros genus. Paleontologists differ widely concerning its systematic position. It had not been found in China until 1996, when the lower jaw (IVPP V9964) was unearthed from the second layer of the yellow sandstone of the Lower Member of the Xianshuihe Formation at GL 9605 in the Dahonggou area of the Lanzhou Basin, Gansu Province (vide Qiu et al., 1997). The discovery not only verified our previous dating of the yellow sandstone of the Lanzhou Basin as of Oligocene, but also provided us with important new information as to the affinity of the poorly known genus Allacerops.

摘要： 记述了一段属于Allacerops cf. A. turgaica幼年个体的下颌骨。化石采自甘肃兰州盆地渐新世地层中。Allacerops是亚洲一类较原始的犀。在基本特征上，特别是在门齿和犬齿构造上，它和欧洲的Eggysodon最为接近，有人把它们合为一属。研究表明，它们在门齿的数目和颊齿的形态上有比较明显的差异，应是跑犀科内不同的属。文中主要根据犀类门齿、犬齿的分异，对犀超科内科一级的现行划分提出质疑，认为Indricotheriidae科的地位应予恢复，跑犀科只应包括那些门齿、犬齿未特化，也不急剧退化