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Benvenuti in queste pagine dedicate a scienza ed arte. Amelia Carolina Sparavigna

Monday, July 18, 2011

Cocoons

"...a new finding of ancient wasp cocoons hidden inside the fossilized egg of a titanosaur sauropod.
The research, published July 15 in the journal Palaeontology, suggests the ancient wasps played an important role in certain food webs during the Age of Dinosaurs. The clutch of five eggs ... belonging to a titanosaur (among the largest creatures to ever walk the Earth), was discovered in 1989 in the Patagonia region of Argentina; only recently did scientists discover that one of the broken eggs contained tiny sausage-shaped structures. The size and shape of the structures, which are about an inch long and 0.3 inches wide (2-3 cm by 1 cm), most closely matched cocoons made by some species of modern wasp ...".
http://www.cbsnews.com/stories/2011/07/15/scitech/main20079883.shtml