Face-to-face in a new fossil discovery, two newfound dinosaur species were revealed today. Both roamed Africa's Sahara desert some 110 million years ago and were found in present-day Niger.
Eocarcharia dinops, or ''fierce-eyed dawn shark,'' (left) was armed with three-inch (7.6-centimeter), blade-like teeth, likely for disabling and dismembering prey. Some experts speculate that its menacing brow was used in head-butting contests with rival males.
Kryptops palaois, or ''old hidden face,'' boasted a horny face that may have had a special role.
"From the texture of the [skull] bone, it seems like they almost have a bill on the front of their face for sticking their head in and gnawing away at carcasses," said Paul Sereno.
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