Lesson 4.1 Mastery: Continental Drift

Preserved remains of the large-seed fern Glossopteris were found on five continents.

Distinctive groups of ancient rocks were found on continents opposite each other across the Atlantic Ocean.

Preserved remains of tropical reefs were found on the Arctic island of Spitsbergen.

The shape of the northwest African coastline appears to interlock with the space between the North and South American continents.