At the beginning of the Paleozoic Era, about 540 million years ago, most of the continental mass on Earth was clustered around the south pole as the paleocontinent Gondwana.
A inicios do Paleozoico, hai uns 540 millóns de anos, a maioría das masas continentais da Terra estaban agrupadas arredor do polo sur formando o paleocontinente de Gondwana.