Scientists put their “stamp” on prehistory after discovering a massive dinosaur footprint in Mongolia said to have belonged to one of the largest two-legged animals ever to roam the Earth.

Determining the biggest dinosaur involves estimating sizes based on incomplete fossil records and digital modeling. Argentinosaurus, Patagotitan, Sauroposeidon and Dreadnoughtus are among the ...

British researchers have unearthed some 200 dinosaur footprints dating back 166 million years in a find believed to be biggest in the UK. Teams from Oxford and Birmingham Universities made the ...