Teen" Dinosaurs Roamed in Herds, Mass Grave SuggestsTasha Eichenseher
National Geographic News
March 15, 2009
Like teenagers at the mall, young dinosaurs may have wandered in herds—fending for themselves while adults were busy nesting—according to a new report on one of the best preserved fossil sites on Earth.
About 90 million years ago a herd of more than 25 birdlike dinosaurs got stuck in the mud at the edge of a drying lake and perished together in China, said study co-leader Paul Sereno, a University of Chicago paleontologist.
Nearly complete skeletons were found at the Gobi desert site—some stacked on top of each other and some with evidence of last meals.
The dig site is etched with ancient tragedy, said Sereno, who is also a National Geographic explorer-in-residence. (The National Geographic Society owns National Geographic News.)
Plunge and scratch marks are reserved in the long-hardened mud, showing the young dinosaurs' futile attempts at escape.
The dinosaurs' flailing likely attracted predators that feasted on the meatiest parts of the young—the hips, Sereno said. Only hip bones are missing from the fossilized bodies.
"This is the best documented case we have for preservation of an actual dinosaur population," Sereno said
National Geographic News
March 15, 2009
Like teenagers at the mall, young dinosaurs may have wandered in herds—fending for themselves while adults were busy nesting—according to a new report on one of the best preserved fossil sites on Earth.
About 90 million years ago a herd of more than 25 birdlike dinosaurs got stuck in the mud at the edge of a drying lake and perished together in China, said study co-leader Paul Sereno, a University of Chicago paleontologist.
Nearly complete skeletons were found at the Gobi desert site—some stacked on top of each other and some with evidence of last meals.
The dig site is etched with ancient tragedy, said Sereno, who is also a National Geographic explorer-in-residence. (The National Geographic Society owns National Geographic News.)
Plunge and scratch marks are reserved in the long-hardened mud, showing the young dinosaurs' futile attempts at escape.
The dinosaurs' flailing likely attracted predators that feasted on the meatiest parts of the young—the hips, Sereno said. Only hip bones are missing from the fossilized bodies.
"This is the best documented case we have for preservation of an actual dinosaur population," Sereno said
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