Dinosaurs

Earlier this year, paleontologists discovered that Spinosaurus was the first water-dwelling dinosaur. Now some of the same team has found further evidence, with a deposit of teeth recovered from an ancient riverbed, far outnumbering land dinosaurs.

One of the largest, most complete and most famous Tyrannosaurus rex skeletons is about to go under the hammer. The dinosaur, nicknamed “Stan,” has been on display in the Black Hills Institute for decades, but will now be auctioned off by Christie’s.

After only 162 years, the first complete dinosaur skeleton to be recovered has finally been properly reconstructed and studied. The 193-million-year-old remains of a Scelidosaurus spent over 150 years stored at the Natural History Museum in London.

Defined by their hollow bones and three-toed feet, the theropods were a group of dinosaurs that counted Tyrannosaurus rex among their ranks. A new member has now been added to the family, thanks to fossils discovered on Britain's Isle of Wight.

For some time now, paleontologists have known of a giant prehistoric crocodylian known as Deinosuchus. Now, however, it has been confirmed that the reptile was capable of killing and eating dinosaurs – with some help from its "banana-sized" teeth.

Mysteries surrounding an ancient, long-necked reptile that lived 242 million years ago have finally been resolved. It's so difficult to understand from its fossils, at one time scientists weren't even sure if it swam in the sea or flew in the sky.

Researchers in Canada have diagnosed an advanced, malignant bone cancer – in a dinosaur. Using human diagnostic techniques, a team examined a large growth on the animal’s leg bone, marking the first time such a diagnosis has been made for a dinosaur.

Research led by scientists associated with the American Museum of Natural History suggests that dinosaurs and pterosaurs descended of a very tiny ancestor, shedding light on how the characteristics of dinosaurs and flying pterosaurs evolved.

A strange fossil discovered in Antarctica almost a decade ago has finally been identified. Researchers at the University of Texas at Austin have determined that the object is a giant, soft-shell egg, most likely laid by an ancient marine reptile.

Palaeontologists have gathered fascinating new insights into dinosaurs from the stomach contents of an incredibly well-preserved nodosaur. They can tell not just what its last meal was, but how it browsed for food and even what time of year it died.

While a gigantic asteroid slamming into the Earth is never a sign of good luck, a new study has shown that the dinosaur-killing asteroid hit the planet at the deadliest possible angle, maximizing the devastating climate change that followed.

Paleontologists in Australia have uncovered a strange new species of dinosaur. It's an elaphrosaur, placing it in the theropod family along with the Tyrannosaurus rex and Velociraptor – but this one had a long neck, no teeth and an unusual diet.