The first supercontinent, called Columbia, or Nuna, existed from around 1.7 billion years ago to 1.45 billion years ago in the Precambrian period (4.6 billion to 541 million years ago).

An ancient supercontinent, far older than anything proposed before, has been pieced together by an international team of geologists. The giant landmass, which has been dubbed Columbia, would have ...

The primeval supercontinent, which Professor John J.W. Rogers named Columbia, existed more than 1.5 billion years ago and is older than any of several giant landmasses previously proposed.

they probably have nothing on the supercontinent of Pangaea, which took tens of millions of years to split up. But now, a unique fossil skull might readjust the timeline, with a strange creature ...

Next up in the supercontinent timeline is Kenorland, followed by Columbia (also known as Nuna), Rodinia, Panottia and Pangaea. In fact, according to Wilkins, plate tectonics will likely smoosh ...

But while Pangea may be the most famous, it wasn't the first; a number of supercontinents came before it, including Nuna (sometimes referred to as the Columbia supercontinent). Nuna itself split ...