During the supercontinent age, which refers to the time when all the continents were joined together, Antarctica was located in the center of the supercontinent Pangaea.

Here's why:

* Pangaea formed around 335 million years ago and began to break apart about 175 million years ago.

* Antarctica was positioned roughly around the South Pole during this time, which is why it remains the coldest and most isolated continent today.

* The location of Antarctica in the interior of Pangaea contributed to its eventual isolation and the development of its unique climate and ecosystem.

While the exact position of Antarctica within Pangaea can be debated, it's generally accepted that it occupied a central location.