This group formed the ancestral stock of the long-necked sauropod dinosaurs. But while it may represent a very early relative of the sauropods, Ahvaytum was significantly smaller than most of ...

LONDON — Why did the dinosaur cross the road? To avoid a prehistoric pileup, probably. According to new research, at least five of them crossed an intersection in southern England some 166 ...

Although scientists haven't found its skull material, which could help illuminate what it ate, other closely related early sauropod-line dinosaurs were eating meat and would likely have been ...

They reveal the comings and goings of two different types of dinosaurs that are thought to be a long-necked sauropod called Cetiosaurus and the smaller meat-eating Megalosaurus. The longest ...

A cousin of the Diplodocus, the dinosaur was the first sauropod to have its bones described, in 1842. The fifth track was created by a Megalosaurus, a 30-foot-long carnivore known for its three ...

The tracks’ preservation is so exquisite that scientists were able to cobble together snapshots of dinosaur behavior. One set of the sauropod tracks intersects with those of the Megalosaurus.

A rendering of how the chicken-sized dinosaur may have looked about 230 million years ago. Illustration by Gabriel Ugueto, courtesy the University of Wisconsin-Madison A chicken-sized dinosaur ...