Scientists Unveil Prehistoric Crocodile

A fossil of a new prehistoric crocodile species "Guarinisuchus munizi" is seen during a press conference at National Museum of the Rio de Janeiro Federal University in Rio de Janeiro, Wednesday, March 26, 2008. Brazilian scientists say they have found a new prehistoric crocodile species that inhabited the Earth\'s oceans some 62 million years ago. (AP Photo/ Ricardo Moraes)

(AP) -- Pointy-nosed crocodiles may have joined sharks as the dominant predators in the world's oceans some 62 million years ago, according to Brazilian scientists who on Wednesday unveiled one of the most complete skeletons found yet of the prehistoric animals.

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