Most people walking through San Francisco see towering skyscrapers, bustling streets, and the iconic Golden Gate Bridge. What they don’t realize is that beneath their feet lies an extraordinary treasure trove of ancient life, buried for millions of years in the city’s complex geological layers. The very ground that supports this modern metropolis tells a story that stretches back through deep time, revealing creatures that once roamed this landscape when it looked nothing like the urban paradise we know today. These fossilized remains paint a picture of prehistoric California that would shock even the most imaginative visitor.
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