new timescales

Pangaea was not the first supercontinent. From the evidence available, scientists have reconstructed a predecessor, termed Pannotia, that formed about 600 mya, before dividing again some 50 million years later. Another, Rodinia, apparently formed approximately 1,100 mya and divided 750 mya.

In comparison, the earth is 4.57 billion years old. Somehow I had thought that Pangaea was the original configuration.

(See also: Supercontinent Cycle)