The horned species, named Spinosaurus mirabilis, had scimitar-shaped crests on the back that were sheathed in keratin. The ...

Paleontologists have discovered a new species of Spinosaurus, Spinosaurus mirabilis, in the remote Sahara Desert of Niger.

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

Learn how a newly discovered 95-million-year-old Spinosaurus mirabilis used interlocking teeth to catch fish in an ancient ...

From riverbanks to shallow lakes, Spinosaurus combined display, biomechanics and hunting power in one of evolution’s strangest designs.