In previous posts, sunken land masses have mentioned. Of course, most of them have been 100's of million years old, but now evidence of a comparable youngster has been found in the India Ocean - it is only estimated to be 10million years old.
The news is contained in "The long-lost continent hidden underneath the Indian Ocean" and the prehistoric continent is named "Mauritia."
Just to tally up some of the lost continents mentioned in this blog:
Off the Coast of Australia
Dwarka
Doggerland
Have a great day.