![Zealandia (pronounced /ziหหlรฆndiษ/), also known as Te Riu-a-Mฤui (Mฤori)[2] or Tasmantis (from the Tasman Sea),[3][4] is an almost entirely submerged mass of continental crust in Oceania that subsided after breaking away from Gondwana 83โ79 million years ago.[5] It has been described variously as a submerged continent, continental fragment, and microcontinent.[6] The name and concept for Zealandia was proposed by Bruce Luyendyk in 1995,[7] and satellite imagery shows it to be almost the size of Australia.[8] A 2021 study suggests Zealandia is over one billion years old, about twice as old as geologists previously thought it was.[9][10] By about 23 million years ago, the landmass may have been completely submerged.[11][12] Today, most of the landmass (94%) remains submerged beneath the Pacific Ocean.[13] New Zealand is the largest portion of Zealandia above sea level, followed by New Caledonia. Mapping of Zealandia concluded in 2023.[14] With a total area of approximately 4,900,000km!](https://pbs.twimg.com/media/HWhGc5RXwAAAc-8.png?name=small&format=webp)
ALT Zealandia (pronounced /ziหหlรฆndiษ/), also known as Te Riu-a-Mฤui (Mฤori)[2] or Tasmantis (from the Tasman Sea),[3][4] is an almost entirely submerged mass of continental crust in Oceania that subsided after breaking away from Gondwana 83โ79 million years ago.[5] It has been described variously as a submerged continent, continental fragment, and microcontinent.[6] The name and concept for Zealandia was proposed by Bruce Luyendyk in 1995,[7] and satellite imagery shows it to be almost the size of Australia.[8] A 2021 study suggests Zealandia is over one billion years old, about twice as old as geologists previously thought it was.[9][10] By about 23 million years ago, the landmass may have been completely submerged.[11][12] Today, most of the landmass (94%) remains submerged beneath the Pacific Ocean.[13] New Zealand is the largest portion of Zealandia above sea level, followed by New Caledonia. Mapping of Zealandia concluded in 2023.[14] With a total area of approximately 4,900,000km!













