During the Early-Middle Devonian period, a large landmass called Gondwana—which included parts of today’s Africa, South America, and Antarctica—was located near the South Pole. Unlike today’s icy conditions, the climate was warmer, and the sea levels were higher, flooding most of the land.
Click here for original story, Waves of change: How sea-levels and climate altered the marine ecosystems at the South Pole 390–385 million years ago
Source: Phys.org