"This may mean that the young were not following their parents in a small family structure," Ramezani said.
This "age segregation" is a sign of a complex, herd-like social structure, suggesting the dinosaurs worked as a community, laying their eggs in a common nesting ground, while juveniles congregated in "schools," and adults roamed and foraged for the herd, the researchers said.
Meanwhile, remains of adult dinosaurs were found alone or in pairs throughout the field site. The researchers observed that the fossils were grouped by age, with dinosaur eggs and hatchlings found in one area and skeletons of juveniles in a nearby location, they said. RELATED Volcanic-driven climate change aided the dinosaurs' rise to power
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