feeding upon very large animals like the Hadrosaurs. However, there were bigger contenders still. TheSpinosaurus, which had rows of bony spines on its back and a crocodile-like
Below the nostril in the upper jaw was a “subnarial gap” – a kink in the jaw bone forming a gap between the front and back teeth. This is also seen inSpinosaurus. To some paleontologists, the presence of a subnarial gap is evidence that Dilophosaurus, likeSpinosaurus, was a fish-e...
At the time of discovery, Giganotosaurus was believed to be the largest theropod before the discovery of another carnivorous dinosaur species about two years later. As far as carnivorous dinosaurs go, the semi-aquaticSpinosaurusis the longest. The dinosaur was found in North Africa in about the ...
Despite their fearsome reputation, the T. rex (pictured) wasn't the biggest meat-eating dinosaur – that title goes to the Spinosaurus, which lived some 10 million years before the T. rex and was around 4 m (13 ft) longer Like most records that deal with size...
We now know that Spinosaurus had a head a little bit like a crocodile, very different from other predatory dinosaurs, very different from the T. rex. But the really interesting information came from the rest of the skeleton. We had long spines, the spines forming the big sail. We had leg...
a paleontologist and National Geographic Explorer who was part of a team that recently found tail bones of a Spinosaurus dinosaur in the Sahara Desert. The bones were a noteworthy discovery because their structure indicates that the Spinosaurus, which was larger than the Tyrannosaurus Rex, c...
The research sheds new light on a conundrum that has perplexed paleontologists. Dinosaurs had a joint in the middle of their lower jaws, called the intramandibular joint, which is also present in modern-day reptiles. Previous research has suggested this joint was flexible, like it is in snakes...
Spinosaurus challenged this. It walked on a pair of powerful hind legs and could run as fast as a professional footballer, but balance issues meant that Giganotosaurus could outrun it. Its brain was twice the size of most other predatory giants, but its intellectual prowess wasn’t a patch...
that galloping herd ofGallimimusin "Jurassic Park" was impressive, as was that rampagingSpinosauruson the long-since-canceled TV series "Terra Nova." But the fact is that we know virtually
It's one thing to know that a dinosaur was 40 feet long and weighed seven tons, and another to grasp just how enormous that was compared to the average full-grown human. This photo gallery will show you just how enormous some prehistoric animals were!