The land mass of 4.5 million square kilometers (1.74 million square miles) is 94 percent submerged and just its most astounding focuses - New Zealand and New Caldeonia - jab over the surface.
"It's somewhat baffling for us geologists with the seas being there," said Nick Mortimer, a geologist at GNS Science in Dunedin, New Zealand.
"In the event that we could pull the attachment on the seas it is clear to everybody we have mountain chains and a major high-standing landmass over the sea outside layer."
Mortimer was lead creator of the paper titled "Zealandia: Earth's shrouded mainland" which says the new revelations demonstrate what had for some time been suspected.
"Since about the 1920s, every once in a while in topography papers individuals utilized "mainland" to portray different parts of New Zealand and the Catham Islands and New Caledionia," Mortimer said.
"The distinction now is that we feel we've sufficiently accumulated data to change "mainland" to the thing, 'landmass'."
Mortimer said geologists right on time in the earlier century had discovered stone from sub-antarctic islands close New Zealand and metaphormic shakes on New Caledonia that were demonstrative of mainland geography.
On the off chance that the current disclosure is acknowledged by mainstream researchers, cartographers will most likely need to add an eighth landmass to future maps and map books.
"The paper we've composed unashamedly adheres to experimental perceptions and depictions," Mortimer said. "The litmus test will truly be if "Zealandia" shows up in maps and map books in five or 10 year's time.""Zealandia" is accepted to have split far from Australia around 80 million years prior and sank underneath the ocean as a major aspect of the separate of the super-mainland known as Gondwanaland.
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