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Dinosaur Egg Fossils Found In Spain Suggest Several Sauropods Nested In Area

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Researchers in northeastern Spain say they’ve uncovered hundreds of dinosaur egg fossils, including four kinds that had never been found before in the region. The eggs likely were left behind by sauropods millions of years ago.

Eggs, eggshell fragments and dozens of clutches were nestled in the stratigraphic layers of the Tremp geological formation at the site of Coll de Nargó in the Spanish province of Lleida, which was a marshy region during the Late Cretaceous Period, the researchers said.

“Eggshells, eggs and nests were found in abundance and they all belong to dinosaurs, sauropods in particular,” the study’s leader, Albert García Sellés from the Miquel Crusafont Catalan Palaeontology Institute, told Spanish news agency SINC this week.

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Dinosaurs’ Long Necks Made Possible By Hollow Bones, Sauropod Fossils Suggest

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How did the largest of all dinosaurs evolve necks longer than any other creature that has ever lived? One secret: mostly hollow neck bones, researchers say.

The largest creatures to ever walk the Earth were the long-necked, long-tailed dinosaurs known as the sauropods. These vegetarians had by far the longest necks of any known animal. The dinosaurs’ necks reached up to 50 feet (15 meters) in length, six times longer than that of the current world-record holder, the giraffe, and at least five times longer than those of any other animal that has lived on land.

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During Demise Of Dinosaurs, Early Mammals Had Reason To Smile

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Dr. Gregory P. Wilson is an Adjunct Curator of Vertebrate Paleontology and Assistant Professor of Biology at the Burke Museum of the University of Washington. He is also the lead author of a study that was published in Nature only two days ago, titled Adaptive Radiation of Multituberculate Mammals Before the Extinction of Dinosaurs.

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