Current Location:home > Detailed Browse

Article Detail

New fossils of paraceratheres (Perissodactyla, Mammalia) from the Early Oligocene of the Lanzhou Basin, Gansu Province, China

Abstracts

描述了在兰州盆地渐新统韩家井组底部的黄砂层中新发现的巨犀化石:黄河巨犀(Paraceratherium huangheense sp. nov.) (新种), 该化石产出层位的古地磁年龄为距今31.5Ma。新种主要特征为:P2之前无齿槽痕迹,一对下门齿粗壮,互相靠近,向前平伸且略微上翘,下颏孔位于p3之下,水平支下缘平直, p2前的齿隙部分向上隆起,下颌角圆钝,上升支后缘斜向后上方,齿式: ?·?·3·3/1·0·3·3。除个体较大、下颌后缘有所不同之外,其下颌的总体特征与巴基斯坦的Paraceratherium bugtiense最为接近,显示两者可能具有较近的亲缘关系。新标本的发现为确定经典的Dera Bugti地点产大巨犀化石层位的年代提供了新的证据,并为青藏高原的隆升讨论提供了新的哺乳动物化石证据。
Download Comment From cooperative journals:《古脊椎动物学报》 Hits:4276 Downloads:977
DOI:DOI: 10.19615/j.cnki.1000-3118.170922
Journal:Vertebrata PalAsiatica
Recommended references: LI Yong-Xiang,ZHANG Yun-Xiang,LI Ji,LI Zhi-Chao,XIE Kun.(2017).New fossils of paraceratheres (Perissodactyla, Mammalia) from the Early Oligocene of the Lanzhou Basin, Gansu Province, China.古脊椎动物学报.doi:DOI: 10.19615/j.cnki.1000-3118.170922 (Click&Copy)
Version History
[V1] 2017-09-28 08:38:13 chinaXiv:201709.00121V1 Download
Related Paper

Download

Current Browse

Change Subject Browse

Cross Subject Browse

  • - NO