| 剑齿象系统发育的探讨 |
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| 引用本文： | 陈萍.剑齿象系统发育的探讨[J].安徽理工大学学报(自然科学版),1992(1). |
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| 作者姓名： | 陈萍 |
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| 作者单位： | 淮南矿业学院地质系 |
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| 摘 要： | 本文以分支系统学为理论依据,分析了剑齿象演化中的近裔性状及其演化极向。以简约性原则建立了反映剑齿象属(Stegodon)各种间系统发育关系的分支图解。与传统的系统学不同,分支图解中不仅表明了某些种之间的租裔序列,而且主要反映了相应的“姐妹群”。同时,进一步运用国外较新的方法,对所建立的分支图解作了检验,并结合地质时代的分布将分支图解转化为系统树。
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| 关 键 词： | 长鼻目 分类 系统树/分支图解 |
Explorations for Phylogeny of Stegodon |
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| Chen Ping.Explorations for Phylogeny of Stegodon[J].Journal of Anhui University of Science and Technology:Natural Science,1992(1). |
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| Authors: | Chen Ping |
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| Institution: | Dept. Geology |
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| Abstract: | On the basis of the theory of cladistics, analysis s made of the apomorphy and polarity in the evolution of stegodon. In accordance with parsimony principle, a cladogram is established showing, unlike with the conventional phylogeny, the phylogenetic relationship between various species of stegodon, not only the ancestral-descendent sequence but also "sister groups". The cladogram is examined by using a new foreign method and transformed through being mapped noto corresponding geological ages into a phylogeny tree |
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| Keywords: | proboscidae classification trees of evolution/cladogram |
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