Spinosaurus, the only known semiaquatic dinosaur predator, joins Tyrannosaurus, Giganotosaurus and Carcharodontosaurus among the largest meat-eating dinosaurs.

During a 2022 expedition to Niger in West Africa, fossils of a new species of Spinosaurus, called Spinosaurus Mirabilis, were discovered.

Could Spinosaurus swim? A new fossil with a scimitar-like head crest provides new evidence on the unsettled question.

Sereno, a National Geographic Explorer, says the newly discovered dinosaur was roughly the size of a Tyrannosaurus Rex, about ...