NOVA: Bigger Than T.rex

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Nizar Ibrahim with a fossil.

Courtesy of Nizar Ibrahim

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Spinosaurus bones in Nizar Ibrahim's lab at the University of Chicago.

Courtesy of WGBH

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Nizar Ibrahim with a fossil.

Courtesy of Nizar Ibrahim

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Paul Sereno working in Morocco at dig site.

Courtesy of Nizar Ibrahim

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Paul Sereno and Nizar Ibrahim hold alligator in their lab at the University of Chicago.

Courtesy of WGBH

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Dinosaur fossil outside museum in Erfoud, Morocco.

Courtesy of WGBH

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Ernst Stromer in Egypt with camels, early 1900s.

Courtesy of Rotraut Baumbauer

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Ernst Stromer with large dinosaur bone.

Courtesy of Rotraut Baumbauer

"Bigger Than T.rex" - Almost a century ago, paleontologists found fossil bones from a dinosaur that was bigger than Tyrannosaurus rex. The Spinosaurus fossils were destroyed in a WWII bombing raid. Now, the discovery of new bones in Morocco is reopening the investigation into this epic beast. Follow the paleontologists who are reconstructing this terrifying carnivore, a 53-foot-long behemoth with a huge dorsal sail, scimitar-like claws and super jaws. Bringing together experts in paleontology, geology, climatology and paleobotany, this special brings to life the lost world over which Spinosaurus reigned more than 65 million years ago.

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