Paleontologists believe they have staged a debate over the largest dinosaur predator.
Researchers at the University of Portsmouth say their discovery of 1,200 dinosaur teeth “proves beyond a shadow of a doubt” that Spinosaurus was a “huge river monster.”
His dental remains make up 45% of those found in a prehistoric river, they said.
The findings are published in the journal Credaceous Research.
Spinosaurus fossils have been found in large numbers on the site of an ancient riverbed in Morocco that flowed through the Sahara Desert 100 million years ago.
The scientists said their discovery meant that the 15-meter (49-foot) six-ton dinosaur was not a terrestrial predator, but largely aquatic.
after analysis of the tail of a spinosaurus.
David Martil, a professor of paleobiology at the university, said: “We don’t know of any other place where such a mass of dinosaur teeth has been found in rock.
“The increased abundance of spinosaurus teeth, compared to other dinosaurs, is a reflection of their aquatic lifestyle.
“An animal that has lived in water for most of its life is much more likely to contribute to the river with its teeth than those dinosaurs that may have visited the river only for drinking and feeding along its banks.
Spinosaurus aegyptiacus the remains were first discovered about 100 years ago in Egypt.
They were moved to a museum in Munich, but destroyed during World War II.
- University of Portsmouth