It falls outside the scope of the formal taxonomic categories . 它不属于正规植物分类学的分类阶元的范畴。
2.
Phylogenetic relationships among the higher taxonomic categories of gekkotan lizards c - mos gene appears very useful for resolving phylogenetic divergences among higher level vertebrate taxa including reptiles . we selected this gene for the phylogenetic relationship analysis among the higher taxonomic categories of gekkotan lizards 壁虎类蜥蜴高阶元类群间的系统发生关系c - mos基因作为分子标记已成功地应用于包括爬行动物在内的某些脊椎动较高阶元类群系统学的研究，我们选择这一基因分析壁虎类蜥蜴高阶元类群间的系统发生关系。
