A treasure trove of fossilized eggs, nests and skeletons represents the earliest evidence yet of dinosaurs traveling in herds, a study finds.
The newly unearthed egg clutches were found alongside the skeletal remains of dozens of newborn, juvenile and adult dinosaurs, suggesting the creatures stayed together throughout their lives. At about 193 million years old, the finds displace the previous oldest evidence of herd behavior in dinosaurs by at least 40 million years, researchers report October 21 in Scientific Reports.
In southern Argentina, paleontologist Diego Pol of the Museo Paleontológico Egidio Feruglio in Trelew, Argentina, and colleagues found 80 individuals and over 100 eggs, all of the early sauropod
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