Once Again, Fossils Are Hot
It is a gem with a living past. The ammonite, formed by millions of years of compression and mineralization, has an opalescent quality, iridescent as prisms of light diffract off its coiled outer shell. More than 70 million years ago, that shell housed a now-extinct creature, a cephalopod that was a member of the squid family.
……Read full article on The New York Times-Science
History Science
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