spreading to southern Gondwana and to Laurasia, the adjacent northern supercontinent that later split into Europe, Asia and North America. Support for this origin comes from the fact it is a ...

The earliest dinosaurs may have emerged in the Amazon and other regions of South America and Africa-and their remains might just be waiting to be discovered. Currently, the oldest known dinosaur ...

Laurasia, the northern half, broke up into North America and Eurasia. Gondwana, the southern half, began to break up by the mid-Jurassic. The eastern portion—Antarctica, Madagascar, India ...