Chicago's Field Museum on Friday unveiled a 46-foot cast of a Spinosaurus skeleton. The Spinosaurus is believed to be the largest predatory dinosaur to have existed.

A new reconstruction of this aquatic monster, known as Spinosaurus, shows its skeleton alone measured 50 feet, longer than a fire engine. In its heyday 97 million years ago, ...

A new skeleton, pieced together with bones from the sands of the Sahara desert, confirms the existence of the world's first semiaquatic dinosaur -- Spinosaurus.

A century ago, scientists unearthed fossils of a gigantic carnivorous dinosaur bigger than Tyrannosaurus rex in the Sahara desert, but until recently, paleontologists thought the fearsome beast ...

Rediscovering Spinosaurus, the Lost Dinosaur. The apex predator is back on the paleontological map thanks to a mustachioed Bedouin hunter and the color purple ...

By Riley Black. September 11, 2014 ... The core of the new study, led by University of Chicago paleontologist Nizar Ibrahim, is a partial skeleton of Spinosaurus found in the 97 million year old ...

Reconstructed skeleton of a moderately sized Spinosaurus showing its famous sail-back and tail plume. Scale bar is 1 m.

Top: reconstruction of the tail skeleton of Spinosaurus (missing bones shown in white). Center: cross sections through the tail showing changes in the vertebrae, tail volume, and arrangement of ...

WASHINGTON – Picture the fearsome creatures of “Jurassic Park” crossed with the shark from “Jaws.” Then super-size to the biggest predator ever to roam Earth. Now add a crocodile snout ...

(CBS) -- It's taken over a century to put together the skeleton of a dinosaur that nightmares are made of. University of Chicago Paleontologist Paul Sereno says 50-foot long Spinosaurus ...

In the Kem Kem beds of eastern Morocco, Nizar Ibrahim, a vertebrate paleontologist at the University of Chicago, and colleagues discovered what ended up being a partial skeleton of the dinosaur ...