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封面先容

《古脊椎动物学报》2018年第56卷第3期

发表日期:2018-07-13来源:放大 缩小

封面说明:庆阳三趾马动物群生态复原图。桑氏大唇犀新种 (Chilotherium licenti sp. nov.) 是大唇犀属内最进步的一个种,材料为桑志华于 1920 年在甘肃庆阳晚中新世地层中采集到的一件关联寰椎的成年头骨和一件成年下颌骨。桑氏大唇犀的组合特征区别于大唇犀属内其他已知种,如前刺和小刺发育并连接形成中凹 (P2 到 M2), 内外齿带退化等。新种的进步特征显示其属于大唇犀属内高度特化的类群。详见本期孙丹辉等人文 (p. 219)。 ( 绘图:陈瑜 )

Cover image: The ecological reconstruction of the Qingyang Hipparion fauna. Chilotherium licenti sp. nov is the most derived species in the known species of the Chilotherium lineage, and its specimens include an adult skull with articulated atlas and an adult mandible collected by Emile Licent in 1920 from the Late Miocene deposits of Qingyang (Gansu, China). Chilotherium licenti is characterized by the medifossette on P2 to M2 forming by well-developed crochet and crista, and the near absence of lingual and buccal cingula. The derived characters of the new species indicate that it is the highly specialized taxon of the genus Chilotherium. See details in the paper of Sun et al. (p. 219) (Illustrated by Chen Yu)

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