New Study Maps Hidden Fragments of Gondwana, Revealing a ‘Greater Gondwana’ Far Larger Than Previously Thought
A new geological study is redrawing the map of one of Earth’s most important ancient supercontinents. Researchers have identified extensive fragments of Gondwana buried beneath parts of Asia, Europe and North America, suggesting that the prehistoric landmass was considerably larger than conventional reconstructions have indicated.
The study, published in Science Advances on September 9, 2026, analyzed the chemical signatures of 25,346 felsic and intermediate igneous rocks. By examining their neodymium isotopic characteristics, scientists were able to identify ancient pieces of continental crust that are now concealed beneath much younger geological formations.
The findings suggest that Gondwana may have covered roughly 80% of the world’s continental land area around 500 million years ago. Earlier estimates had placed its extent at about 64%, meaning the newly reconstructed Gondwana incorporates a substantial amount of crust that had previously been left outside the supercontinent.
Researchers describe the expanded reconstruction as “Greater Gondwana.” The hidden portions are not visible as recognizable pieces of an ancient continent today because hundreds of millions of years of plate movement, mountain building and continental collision have buried and rearranged them.
The key to finding these lost fragments was chemistry rather than simply looking at the present-day position of continents. Ancient rocks preserve isotopic signatures that can act as geological fingerprints, allowing scientists to determine whether apparently unrelated pieces of crust once shared a common continental history.
This changes the traditional picture of Gondwana. The supercontinent is generally associated with ancient landmasses that eventually became much of present-day South America, Africa, Antarctica, Australia and the Indian subcontinent. The new reconstruction indicates that its geological influence extended considerably farther into areas that are now part of the Northern Hemisphere.
The discovery also has implications for understanding how Earth’s continents were assembled. Gondwana existed hundreds of millions of years before the better-known supercontinent Pangaea and subsequently underwent enormous changes as tectonic plates moved, collided and separated.
Perhaps more significantly, the researchers propose that the formation and destruction of Greater Gondwana could have influenced major environmental changes during the Ediacaran-Cambrian transition, roughly 550–500 million years ago. This was a critical period in Earth’s history when complex multicellular organisms diversified dramatically.
The study suggests that the assembly of such a huge continental system, together with subduction around its margins, could have altered Earth’s geological and chemical cycles. Those changes may have affected oceans, atmosphere and nutrient availability during the period leading into the Cambrian radiation of animal life.
The findings are important because the existence and exact status of Gondwana as a true supercontinent have been debated partly because of its previously estimated size. If its continental area was indeed closer to 80% of global landmass, the argument that Gondwana qualifies as a genuine supercontinent becomes substantially stronger.
The research also demonstrates how much of Earth’s geological history remains hidden beneath the surface. Modern continents preserve only fragments of ancient configurations, while rocks buried beneath mountain belts can retain evidence of continents that disappeared hundreds of millions of years ago.
For scientists, the new map is therefore more than a reconstruction of an extinct landmass. It provides another piece of the long geological story linking continental movement, mountain formation, ocean chemistry and the evolution of life.
As researchers continue combining isotope chemistry with geological mapping and plate-tectonic models, the picture of Earth’s ancient supercontinents is likely to become increasingly detailed. The latest evidence suggests that Gondwana was not simply a large southern landmass—it may have been a far more extensive global-scale continental system than previously recognized.
