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Dinosaur Species Larger Than T-Rex Unearthed

From the N.Y. Times

The carnivore, named Mapusaurus, lived 100 million years ago in Argentina and was apparently a pack hunter, not a solitary predator.

N.Y. Times:

A Meat Eater Bigger Than T. Rex Is Unearthed
By JOHN NOBLE WILFORD

A new dinosaur species, one of the largest known carnivorous dinosaurs, has emerged from the red sandstone of Patagonia, in Argentina, where reptilian giants seem to have thrived 100 million years ago.

Paleontologists reported yesterday that they had found the fossils of seven to nine individuals of a species they are naming Mapusaurus roseae.

An analysis of the bones showed that an adult exceeded 40 feet in length, which the discoverers said was slightly larger than specimens of both its close relative, Giganotosaurus, and Tyrannosaurus rex. Some scientists think that a Spinosaurus species from North Africa is the largest meat-eating dinosaur, but that is still debated.

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TAGS: argentina carnivorous dinosaur fossils giganotosaurus mapusaurus paleontologists patagonia species tyrannosaurus rex

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By Dan, May 20, 2006 at 12:37 pm #
(Unregistered commenter)

This dinosaur was not a close relative of T-rex. It was a huge decendant of the allosaurids.

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By freddy, May 16, 2006 at 9:26 pm #
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sue has 42 foot ( 12.80 meters)and plis send me a sizes of every one to my emai

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By Ronald Anckaert, April 27, 2006 at 10:40 am #
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Hello,

I still don’t understand why lot’s of scientists claim that Spinosaurus aegyptiacus was ‘the biggest of all’, while 1) remains were to scarce to make reliable size-calculations and 2) these remains were destroyed during world war II ...

Ronald.

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By donaldocastillo, April 26, 2006 at 12:34 pm #
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i had to look for an article for school and these help me.

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