Question

which fossil occurs on the most landmasses? What does this suggest about when these particular continents broke up

Answer 1

The Glossopteridales (Glossopteris fossils) occur on the most landmasses. Their distribution across several detached landmasses led scientists to believe that these were once merged into a single supercontinent

Answer 2

The fossils of Glossopteridales occur on most landmasses.

• Glossopteridales are extinct species of seed ferns that belonged to the order Pteridospermatophyta.
• The uniform and symmetrical distribution of Glossopteridales fossils suggest that the continents were earlier a single landmass.
• This single huge landmass called a supercontinent has been named Pangaea.

• Slowly, due to tectonic plate movements and continental drift, Pangaea broke into supercontinents Gondwana and Laurasia.
• These further divided into the 7 continental plates we see today.