ocean-life-801

Liopleurodon was a pliosaur and apex predator of the Jurassic seas. Here the green sea monster hunts sharks in shallow waters in a kelp forest. 3D Rendering.


The remarkably well-preserved skull of a gigantic pliosaur, a prehistoric sea monster, has been discovered on a beach in the county of Dorset in southern England, and it could reveal secrets about these awe-inspiring creatures.

Pliosaurs dominated the oceans at a time when dinosaurs roamed the land. The unearthed fossil is about 150 million years old, almost 3 million years younger than any other pliosaur find. Researchers are analyzing the specimen to determine whether it could even be a species new to science.

Originally spotted in spring 2022, the fossil, along with its complicated excavation and ongoing scientific investigation, are now detailed in the upcoming BBC documentary “Attenborough and the Jurassic Sea Monster,” presented by legendary naturalist Sir David Attenborough, that will air February 14 on PBS.

Such was the enormous size of the carnivorous marine reptile that the skull, excavated from a cliff along Dorset’s “Jurassic Coast,” is almost 2 meters (6.6 feet) long. In its fossilized form, the specimen weighs over half a metric ton. Pliosaurs species could grow to 15 meters (50 feet) in length, according to Encyclopaedia Britannica.

The fossil was buried deep in the cliff, about 11 meters (36 feet) above the ground and 15 meters (49 feet) down the cliff, local paleontologist Steve Etches, who helped uncover it, told CNN in a video call.

Extracting it proved a perilous task, one fraught with danger as a crew raced against the clock during a window of good weather before summer storms closed in and the cliff eroded, possibly taking the rare and significant fossil with it.

Etches first learned of the fossil’s existence when his friend Philip Jacobs called him after coming across the pliosaur’s snout on the beach. Right from the start, they were “quite excited, because its jaws closed together which indicates (the fossil) is complete,” Etches said.