A new study indicates the giant reptile Deinosuchus is not a close relative of modern alligators, as scientists previously ...

Image: Márton Szabó Late Cretaceous interaction in the southwestern coastal wetlands of the Western Interior Sea-way: Deinosuchus ...

The prehistoric crocodile relative may have tolerated both freshwater and saltwater habitats, allowing it to conquer North ...

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Researchers may have discovered Mississippi's largest ever mosasaur after pulling a Cretaceous-aged fossil out of a riverbed ...

Geologists near Starkville found a bone of a Mosasaurus hoffmannii, one of the biggest species of mosasaurs, which could reach lengths of 50 feet.

"Twins! She has another baby," Judith Pardo-Pérez, a paleontologist at the University of Magallanes in Chile who first discovered the fossil in 2009, told Live Science, adding that she plans to ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...

Earth was once ruled by giant reptiles. Tyrannosaurus rex, the king of tyrant lizards, crushed bones. Spinosaurus hunted in ...

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

The massive fossil is suspected to belong to one of the most complete skeletons in the area, portions of which were discovered in the 1970s.