महाद्वीपीय विस्थापन सिद्धांत के अनुसार, विशाल महाद्वीप पैंजिया (Pangea) एक महा-महासागर से घिरा हुआ था, जिसे कहा जाता था:

What was the name of the supercontinent proposed by Alfred Wegener in his Continental Drift Theory?

The hypothesis that all present continents were once united in a single supercontinent called Pangaea was proposed by: