Photo on left shows eroded dinosaur footprints and tail-drag marks -- highlighted in the diagram at right -- at a northern Arizona site that University of Utah geologists are calling "a dinosaur ...

Researchers analyzed 131 fossilized impressions on the Isle of Skye, some of which were previously considered fish burrows ...

Lumbering, long-necked dinosaurs frequented the same watering hole as their predators some 167 million years ago, a scientific study of dinosaur footprints found. The footprints at what is now the ...