第55卷 第4期 古 脊 椎 动 物 学 报 pp. 331-346 figs. 1-5 2017年10月 VERTEBRATA PALASIATICA DOI: 10.19615/j.cnki.1000-3118.170511 Cranial and dental material of Gomphotherium wimani (Gomphotheriidae, Proboscidea) from the Middle Miocene of the Linxia Basin, northwestern China YANG Xiang-Wen1,2 LI Yu1,2 WANG Shi-Qi1,3∗ (1 Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Beijing 100044 ∗ Corresponding author:
[email protected]) (2 University of Chinese Academy of Sciences Beijing 100049) (3 CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 100101) Key words Linxia Basin, Middle Miocene, Gomphotherium, biochronology Citation Yang X W, Li Y, Wang S Q, 2017. Cranial and dental material of Gomphotherium wimani (Gomphotheriidae, Proboscidea) from the Middle Miocene of the Linxia Basin, northwestern China. Vertebrata PalAsiatica, 55(4): 331–346 Summary Material of Gomphotherium wimani has been reported in several localities after Hopwood (1935). However, most of the findings are isolated cheek teeth, and the morphology and stratigraphy of this species remain unclear to researchers. Here we reported an incomplete juvenile cranium and cheek teeth from Linxia Basin, northwestern China. The new material is well comparable with the holotype and helps to cognize the morphology, taxonomy and stratigraphic range of the rarely known species. Proboscidea Illiger, 1811 Gomphotheriidae Hay, 1922 Gomphotherium Burmeister, 1837 Gomphotherium wimani (Hopwood, 1935) (Figs. 3–5; Tables S1−2) Holotype PMU M 3649, a palate bearing both M2−M3 tooth rows and fully worn left M1 (Hopwood, 1935:pl.