但西双版纳古陆分别于晚石炭纪和中、晚侏罗纪两次沦为海洋，其物种起源与演化成果前功尽弃。
But Xishuangbanna Oldland sank under the sea twice in late Carboniferous and middle and late Jurassic , all achievements in species origin and evolution were spoiled .
海洋起源与演化