Measuring dinosaur eggs. Palaeontologists Dr J.L. Sanz (at left) and J. Moratalla measure fossilised eggs laid in a dinosaur nest they discovered. Egg diameter is about 20 centimetres. These eggs come from the Tremp basin,South Central Pyrenees in Spain. The site known as Bastus is among the rich- est deposits of dinosaur eggs. About 300 000 eggs are preserved in 12 000 cubic metres of rock. At the time of the Upper Cretaceous (65-100 million years ago) when these dinosaurs lived,the site was located at the seashore. This nesting ground was probably visited regularly by the dinosaurs. Researchers from the University of Madrid,Spain | |
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