Dinosaur Eggs Fossilized in Glass During Act of Division!

The first fossils of half-billion-year-old clusters of soft-shelled eggs have been found preserved in a strange new way. Some of the eggs were even caught in the act of dividing. The three-dimensional clusters of petrified eggs from invertebrate animals that lived in a sea 501 to 510 million years ago are preserved in silica; glass essentially

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