《Table 2 Measurements of the cheek teeth of Chilotherium licenti sp.nov.comparedwith other species o
本系列图表出处文件名:随高清版一同展现
《"甘肃庆阳晚中新世大唇犀属(奇蹄目,犀科)一新种(英文)"》
Based on:1) Deng,2006;2) Ji et al.,1980;3) Deng,2001a;4) Ringstrm,1924.
Chilotherium anderssoni,the type species of the genus Chilotherium,was described by Ringstr?m in 1924.That species has a U-shaped nasal notch,a weak crochet on M3,a weak crochet and crista on P2(not linking together to form a medifossette),and a continuous lingual cingulum on the premolars.In contract,C.licenti has a V-shaped nasal notch,nearly absent labial and buccal cingula on the premolars,medifossettes present from P2 to M2.C.licenti has a fl at cranial dorsal profi le,a thin dorsal orbital margin,narrow nasals,and fl at outer walls of cheek teeth.Those features are obviously more derived than the characters of C.primigenius,C.wimani and C.xizangensis.Furthermore,C.licenti is somewhat larger than the three other Chinese species,which is shown in Table 1.And the measurements of the cheek teeth ofC.licenti sp.nov.compared with other species of Chilotherium are shown in Table 2.The upper cheek teeth of C.licenti show derived characters that distinguish them from those of C.wimani,including a fl at buccal wall almost without a paracone rib and parastyle fold,and strongly constricted protocones and hypocones.C.primigenius,an early Late Miocene species(Deng,2006),has the primitive characters which are diff erent from C.licenti.C.xizangensis is similar to C.wimani,in that they both have a saddle-backed cranial dorsal profi le,projecting anterior and thick dorsal margins of the orbits,a low crown,and marked parastyle folds(Ji et al.,1980;Deng,2001a).This new species is different from C.habereri evidently based on some characters on the upper cheek teeth.In C.licenti,the lingual and buccal cingula on premolars are nearly absent and the medifossettes are present on P2–M2.However the cingula of C.habereri are continuous,and there is a medifossette only on premolars,not on molars(Ringstr?m,1924).
图表编号 | XD0020742900 严禁用于非法目的 |
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绘制时间 | 2018.07.01 |
作者 | 孙丹辉、李雨、邓涛 |
绘制单位 | 中国科学院古脊椎动物与古人类研究所中国科学院脊椎动物演化与人类起源重点实验室、中国科学院生物演化与环境卓越创新中心、中国科学院大学、中国科学院古脊椎动物与古人类研究所中国科学院脊椎动物演化与人类起源重点实验室、中国科学院大学、中国科学院古脊椎动物与古人类研究所中国科学院脊椎动物演化与人类起源重点实验室、中国科学院生物演化与环境卓越创新中心、中国科学院大学、南京大学地球科学系 |
更多格式 | 高清、无水印(增值服务) |
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