EFFECT OF CONTINENTAL DRIFT ON PHYLOGENY OF TERMITES
大陆漂移与白蚁的系统发育

The relation between continental drift and phylogeny of termites were discussed in this paper. The authors think, the time of originof the ancestor of Isoptera and the original termites propably originated later than the Blattariae or this two orders had originated in the same geologic period. It is considered that the groups of ancestor of Isoptera and the original termites had originated at the Pangaea. Both of them multiplied and cvolved at the broadly united continents before the time of Cretaceous, and the differentiation of the families of Isoptera had successionly completed in that geologic period, but not proportionally dipersed. Many evidences show that some groups had hardly existed in adverse environment at the northern land, but most of the members of the groups existed at the southern end of the world as well. Since then, the Pangaea splited apart and drifted for different directions.The ancestors of the families of the termites were carried by the separate continents to different regions of the world and the original termites evolved in each region, and then formed into the characteristic cntomofauna of Isoptera on there.