The fossil that occurs on the most landmasses is Glossopteris, a type of seed fern. This fossil is found in South America, Africa, India, Antarctica, and Australia, which are all continents that were once part of the supercontinent Pangea.

The widespread distribution of Glossopteris suggests that these continents were connected during the time when this species was alive, which was during the Permian and early Triassic periods (about 299 to 252 million years ago).

This fossil evidence is one of the strongest pieces of support for the theory of continental drift, which explains how the continents have moved over time.