A massive nesting ground in India is revealing the secret social lives of the world’s largest dinosaurs. Researchers have mapped out a sprawling “hatchery” in the Narmada Valley, proving that titanosaurs were far more than just solitary giants. They were colonial nesters!
Discovery
Scientists from the University of Delhi and the Geological Survey of India identified 92 nesting sites containing a total of 256 fossilized eggs in the Lameta Formation.
Behemoths
These eggs belonged to titanosaurs, the massive long-necked sauropods that dominated the Late Cretaceous of India roughly 67 million years ago.
Egg Facts
While the adults were 70-ton giants, the eggs were roughly 15 to 17 cm in diameter (about the size of a large grapefruit).
Scientific “First”
One of the most incredible finds at this site was a “multi-shell” egg (one egg inside another). This rare pathology suggests that titanosaurs had a reproductive system similar to modern birds!
Why This Matters
The close proximity of the nests (often just 2 meters apart) indicates colonial nesting behavior. While these behemoths were likely too large to sit on their nests or provide active parental care without crushing the eggs, gathering in large groups to lay eggs helped ensure that at least some hatchlings would survive predators like the local abelisaurids.
This site is now considered one of the largest and most significant dinosaur nurseries in the world, giving us a rare window into the beginning of a titan’s life.
