This 70 mya dinosaur egg is from a titanosaur, considered one of the most massive of all dinosaur species ever. It contains the fossilized cocoons of wasps! Modern day wasps are well known for laying their eggs inside dead animals, but this is the first piece of evidence of similar behavior in ancient wasps.
Read more about it in the July issue of Paleontology: http://onlinelibrary.wiley.com/doi/10.1111/j.1475-4983.2011.01064.x/abstract