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大熊猫巴氏亚种齿列变异一例的分析

1976年 第14卷 第4期: 263~266

发表日期:2009-05-05李志恒来源:放大 缩小

编辑:王令红 吴茂霖

摘要: A left upper third molar are found on a skull of fossil giant panda,unearthed near Liuchou, Guangxi. So far as we know, this has not been reported before. As there are three molars on each side of the maxilla in the ancestors of late carnivoral mammals, the occurrence of the upper third molar in this case may be considered as a phenomenon of atavism.
    The strong talon of the left M2 on the skull is not present, and the occlusal surface of left M3 is similar with the talon of a normal M2 in shape. So we can not exclude the possibility that the M3 represents the talon detached from the M2.

卷期:14卷 04期

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