1.【地】劳亚古大陆
1.northern part of the ancient supercontinent of Pangaea, an ancient landmass thought to include what would become North America, Greenland, northern and central Europe, and most of Asia
1.Most amber deposits have been found in former parts of Laurasia, the other supercontinent of the time.
大多数琥珀沉积物都是在当时的另一块超大陆劳拉古陆的前部找到的。
2.Those deposits had placed the origin of ants in Laurasia.
以前那些沉积物将蚂蚁的起源定位在劳拉古陆。