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Phosphatocopida的分支分析

发表时间:2009-11-15  浏览量:1074  下载量:547
全部作者: 张华侨,董熙平
作者单位: 北京大学地球与空间科学学院
摘 要: 对于甲壳纲Phosphatocopida目的内部演化关系一直存在较大争议,而它的合理解释应该基于系统发育系统学。近年来,湘西奥斯坦型保存的Phosphatocopida化石的大量发现为这个类群的系统演化史提供了很多新的信息。因此,在前人研究和湘西材料的基础之上,运用PAUP软件对Phosphatocopida目进行分支系统学研究,重建了其系统演化史,并分析了其内部的演化关系。相应地,讨论了Phosphatocopida目内部主要单系类群的性状组合,并且探讨了部分重要特征的演化趋势。
关 键 词: 地质学;系统演化史;分支分析;Phosphatocopida;甲壳纲;奥斯坦型
Title: Cladistic analysis of Phosphatocopida
Author: ZHANG Huaqiao, DONG Xiping
Organization: School of Earth and Space Sciences, Peking University
Abstract: The evolutionary relationships within Phosphatocopida of Crustacea are long-standing controversies, and a reasonable interpretation should be based on phylogenetic systematics. In recent years, much new information is added to the phylogeny of this taxon with the discovery of a large number of 'Orsten'-type preserved Phosphatocopid fossils from western Hunan. On the basis of the previous data and the new material from western Hunan, the cladistic analysis of Phosphatocopida was carried out using PAUP, its phylogeny was re-established, and its inner evolutionary relationships were analyzed. Accordingly, the paper discussed the ground pattern character sets of the main monophylum within Phosphatocopida, and also the evolutionary trend of some important characters.
Key words: geology; phylogeny; cladistic analysis; Phosphatocopida; Crustacea; 'Orsten'-type
发表期数: 2009年11月第21期
引用格式: 张华侨,董熙平. Phosphatocopida的分支分析[J]. 中国科技论文在线精品论文,2009,2(21):2297-2305.
 
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