First scampering onto the scene around 230 million years ago, theropod dinosaurs were some of the biggest predators on the block - and also some of the smallest. From the ferocious 14,500-pound ...

Paul says, 'Sauropods were the only group that were heavier than the largest land mammals. 'Interestingly, theropod dinosaurs such as Spinosaurus and T. rex were also the only animals to exceed the ...

Footprints made by large theropod dinosaurs have been found on Australia ... Moreover, while theropods ranged dramatically in ...

A fossilized dinosaur egg measuring just 29 millimeters in length, discovered in Ganzhou, East China's Jiangxi Province, has ...

The most complete egg has a maximum length of only 29 mm, setting a new record for the smallest dinosaur egg fossil, Lou said ...

During the course of their evolutionary history, the body size of some theropod groups gradually decreased. This trend, together with many other changes to the skeleton, ultimately led to the ...

Experts had long expected that birds shared a close relationship with theropod ... oldest feathered dinosaurs yet uncovered. The living animal would have been about the size of a crow, covered ...

Science paper non-avialan theropod dinosaurs 2 Science paper non-avialan theropod dinosaurs 3 Science paper non-avialan theropod dinosaurs 4 Science paper non-avialan theropod dinosaurs 5 ...

It really would have been top of the food chain.’ What makes the discovery even more important is that these footprints date back to the Early Jurassic epoch, when it was thought the size of most ...

Science paper non-avialan theropod dinosaurs 2 Science paper non-avialan theropod dinosaurs 3 Science paper non-avialan theropod dinosaurs 4 Science paper non-avialan theropod dinosaurs 5 ...

Eighteen of the 24 tracks belonged to therapods and ranged in size from 18cm to 47cm long. The four ornithopod footprints were smaller, at 10cm to 18cm long. Two footprints were of uncertain origin.