蜥脚类恐龙的系统分析方法研究——以何氏通安龙为例

Systematic Analysis Method of Sauropod : a Case Study of Tonganosaurus hei

文章首先以四川盆地早侏罗世的蜥脚类何氏通安龙(Tonganosaurus hei Li et al.,2010)为例,详细介绍了定量系统分析方法及该方法在确定蜥脚类恐龙化石新材料的分类位置中的应用。该方法包括4个环节:编写和修订语句库,建立数据库,软件分析,结果分析。其中编写和修订语句库尤为关键,需要根据化石材料对语句库进行补充和完善,使得每一个特征都不被遗漏,而且具有与其重要性相一致的权重。随后,文章应用该方法研究了四川盆地侏罗纪长颈蜥脚类的演化关系。结果表明,定量系统分析具有客观、快速、全面的优点。最为重要的是,定量系统分析结果与传统的定性形态分析结果一致,说明该方法对定性形态方法具有补充、校验的作用。

This study takes Tonganosaurus hei （Li et al. , 2010） as an example to introduce a new method of sauropod dinosaurs, quantitative systematic paleontology and its application in determinig the Phylogenetic position of new~ sauropod dinosaur fossil materials. There are four links in this method, compiling and revising the statement repertory, setting up the data base, software analysis and result analysis. Among them, compiling and revising the statement repertory is the key link and needs to be complemented and improved based on the fossil material in order that no features have been omitted. Thus they are of the same weigth in accordance with its importance. Then evolutional relationship of Jurassic long-neck sauropod dinosaur in the Sichuan Basin was analysed by this new method. The result shows the quantitative systematic paleontology has the advantages of objective, fast and all-sided. Most importantly, the result of the quantitative systematic paleontology configuration analysis, indicating this method is of method. is in agreement to that o{ traditional clualitative supplementation and check to qualitative analysis