Newfound dinosaur Eocarcharia dinops grew to about 25 feet (7.6 meters) long.

It had powerful limbs and 3-inch-long (7.6 centimeter-long) blade-shaped teeth, likely for disabling prey and severing body parts, according to a study released on February 12, 2008.

The dinosaur's brow was also massively swollen, giving it a menacing glare. Scientists speculate that the feature may have been used by the reptile and related species in head-butting contests over mating rights.

Eocarcharia was a carcharodontosaurid, meaning it was from the family that gave rise to some of the largest southern predatory dinosaurs, matching or exceeding Tyrannosaurus rex in size.

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