protocontinent
n. 原始大陆（假设中的原始大陆，又称 supercontinent）
例句
During early Mesozoic—Cenozoic cycle, south Tibetan—Indo protocontinent was disintegrated from the Gondwana, drifting toward the equator from southern hemisphere;
新生代板块构造旋回早期藏南—印度古陆从冈瓦纳大陆裂解出来，从南半球向赤道漂移；
