A fossil from one of the largest dinosaurs to live in North America was discovered in a national park in Texas.

More than 230 million years ago, long before giant dinosaurs thundered across Earth, a chicken-sized creature walked near the ...

A joint research team has discovered a fossil belonging to a previously unknown genus and species of mammal in the Late ...

One of the largest crocodilians that ever lived preyed on dinosaurs. New research has found the fearsome Deinosuchus had a ...

The giant sauropod was the largest known land-dwelling animal on the continent. While Alamosaurus remains have been found at Big Bend NP before, most have been "fragmentary and poorly preserved ...

Paleontologists in England discovered the existence of a new marine species that roamed the Earth before the dinosaurs and nicknamed ... on Earth in one of the largest-ever mass extinction events ...

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, new research has revealed. More mammals were living on the ground ...

Dinosaurs likely weren’t declining before an asteroid wiped them all out; instead, there may just be limited fossils from that time period, according to a new study. It has been hotly debated ...

The Alamosaurus was “the largest known land-dwelling animal to have lived ... Fossils from the “giant” dinosaur have been found in the Big Bend before, but are usually poorly preserved ...