Reuters: Norwegian Oil Drill Pulls Up Plateosaurus Fossil from Over 2,200m Beneath North Sea Seabed

In a remarkable 1997 discovery during routine oil exploration, Statoil (now Equinor) engineers at the Snorre field in the Norwegian North Sea retrieved a 4-centimetre knucklebone belonging to a Plateosaurus—a 9-metre, 4-tonne Triᴀssic sauropodomorph—from an astonishing depth of 2,256 metres beneath the seabed.

The bone, preserved in the Late Triᴀssic Lunde Formation (~210–195 million years old), was the first confirmed dinosaur fossil ever found in Norway. At the time, the region was a vast river floodplain on the supercontinent Pangaea, not open ocean. After death, the bone was rapidly buried in river-channel sediments.

Over the subsequent 200 million years, plate tectonics and continuous sedimentation did the rest. As the Atlantic opened, the crust subsided dramatically while new layers piled on top, pushing the fossil more than two kilometres beneath what is now the North Sea floor—equivalent to stacking 20 football fields vertically.

This accidental find during oil drilling perfectly matches geological predictions: normal post-mortem river transport followed by deep burial, not aquatic dinosaurs or a global flood. The specimen remains a textbook example of how terrestrial fossils can end up in extreme offshore settings.

Experts describe it as “a geological miracle” that underscores the dynamic nature of Earth’s crust. From the black depths of the North Sea, this lone Plateosaurus bone emerges as powerful proof that dinosaurs once walked where oil rigs now drill. Paleontology’s deepest dinosaur just delivered its clearest lesson in plate tectonics and deep time.