Articles for category: Prehistoric SeaWorld

The prehistoric sea that once covered the American Midwest - and the extraordinary marine fossils that farmers still find in their fields today

The prehistoric sea that once covered the American Midwest – and the extraordinary marine fossils that farmers still find in their fields today

If you have ever driven across the endless cornfields of Kansas, Nebraska, or Iowa, it is hard to imagine that all of it was once under warm, shallow ocean water. Yet scattered across those quiet fields are shark teeth, coiled shells, and even bones of giant marine reptiles that would have made today’s great white ...

There was a prehistoric shark so large that a full-grown T. Rex could have fit inside its mouth - and it lived far more recently than most people realise.

There was a prehistoric shark so large that a full-grown T. Rex could have fit inside its mouth – and it lived far more recently than most people realise.

Imagine the most terrifying predator you can think of, then realise nature has already done it better. Long after the age of the dinosaurs ended, the oceans were ruled by a shark so massive that a full-grown Tyrannosaurus rex could have fit inside its jaws. That is not science fiction or internet exaggeration; it is ...

The prehistoric ocean floor was covered in a substance so thick and toxic that nothing alive today could survive five minutes in it

The prehistoric ocean floor was covered in a substance so thick and toxic that nothing alive today could survive five minutes in it

Imagine diving to the seafloor and landing not on sand, but in a choking, black, poisonous sludge so dense you could barely move and so hostile your modern body would be done for in minutes. That sounds like something out of a sci‑fi horror movie, but in some intervals of Earth’s deep past, it’s closer ...