This continent was “nomadic”.
Experts from the Institute of petroleum Geology and Geophysics. Nikolay A. A. stated that a continent called Arctida in ancient times, first few times was connected with other territories, and then disconnected, according to the Chronicle.info with reference to the news of the world.
Initially, the ancient continent was part of Rodinia – a single continent that eventually broke up into the modern part. The collapse happened around 750 million years ago. Later Arctida joined Pangaea, but 250 million years ago, once again hung up.
After the above events have formed real Arctic continental shelf. The Arctida specialists correlate with Hyperborea, which was mentioned by Pliny the Elder – scientist of Ancient Rome. According to the latest version, the continents were quite different. It is noteworthy that evidence for the existence of the second continent is still not available.
The fact of the existence ever of Hyperborea, it shows only the recent discoveries in the Lovozero tundra: it was discovered the high walls of regular geometric shape, wells, different size blocks, plates, written artifacts, etc.