【摘要】 <正> 这里記述的一个納瑪象臼齿,材料来自陝西靖边,詳細的化石产地和层位不明。由于化石保存的相当完好,同时納瑪象类化石在靖边的发現还是初次,对于我国納瑪象类的地理分布又填补丁一个空白,因此,值得作一簡单报导。本文的写作,得到周明鎮导师和刘后一等同志的具体指导和帮助,笔者在此表示深切的感謝。更多还原

【Abstract】 An elephantine molar (M~2, dex.) is described in this note. The fossil which is but slightly fossilized and brown colored was collected from a bed of Pleistocene sand at Ching-Pien in northern Shensi. The tooth is of moderate size, narrow-crowned and with a lamellar frequency of 5.5 within each 10 centimeters distance. It is somewhat more progressive than the tooth identified as "Elephas cf. namadicus" from Tingtsen (Pei, 1958). The geological age of the latter is considered by Pei, W. C. as Early late Pleistocene. The tooth described here is probably slightly later in age.更多还原