“Golden Ammonites Peek Out From Black Shale”: What Makes These 183-Million-Year-Old Fossils So Sparkly?
Favicon 
www.iflscience.com

“Golden Ammonites Peek Out From Black Shale”: What Makes These 183-Million-Year-Old Fossils So Sparkly?

The unusual fossils include ichthyosaur embryos and squids with their ink sacs intact.