Alabama’s Lost Sea – 70–100 Million Years Ago – Scientists Reveal THOUSANDS of Marine Fossils

In this video, we explore a lost ocean hidden beneath Alabama—an ancient sea that existed over 70–100 million years ago, long before this land became dry ground. Today, scientists are uncovering thousands of marine fossils, from giant prehistoric sharks to microscopic life, preserved in vast chalk deposits formed from billions of ancient organisms.

What now appears as quiet land was once a thriving marine world filled with predators, strange shell-bearing creatures, and early ecosystems that helped shape life on Earth. Even today, evidence of this vanished ocean continues to surface in unexpected places—shark teeth found miles inland, intricate fossilized shells, and underground cave systems carved over millions of years.

As we journey deeper, we uncover how layers of rock act as a timeline of Earth’s past—recording shifting coastlines, rising and falling seas, and entire ecosystems that came and went. From the fossil-rich Selma Group to newly discovered prehistoric shark species, each finding reveals more about a world long gone, yet still hidden beneath our feet.

This isn’t just ancient history—it’s a window into a dynamic planet constantly in motion.

So how much of this lost ocean is still waiting to be discovered… and what secrets remain buried in the ground below us?
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