Geology of the Pacific Ocean . The Pacific Ocean developed from the Panthalassa, a vast global ocean, following the breakup of the supercontinent Pangaea in the Mesozoic Era, gradually forming Gondwana and Laurasia, which in turn divided. There is no firm date for when the changeover occurred, as the replacement of the sea bed is a continuous process, though reconstruction maps often change the name from Panthalassic to Pacific around the time the Atlantic Ocean began to open. The Panthalassic Ocean first opened around 750 million years ago at the breakup of Rodinia, but the oldest Pacific Ocean floor is only around 180 Ma old.
Gondwana Link this further supports the intentions of the Gondwana Link vision. The Gondwana Link project began in 2002 as an informal coalition with the purchase of Chereninup Creek Reserve and other activities. It was not until 2012 that an incorporated body was formed with the establishment of Gondwana Link Inc. Operational areas are made up of eight major zones. In the Fitz-Stirling section of 'the Link' Greening Australia, Bush Heritage Australia, Fitzgerald Biosphere Group, Carbon Neutral and other private landholders and individuals are working together to reconnect the Stirling Range and Fitzgerald River National Parks, currently separated by only 70 km