- Morphological analysis and zoogeographical patterns can offer valuable cues to this kind of problems.
形态学分析和动物地理分布模式可以提供非常有价值的启示。
- Further study of regional changes in the cranial base, with geometric morphometric analysis, is warranted.
值得进一步进行几何形态学分析的研究，以便更清楚地找出颅底局部变异的位置所在。
