Photo: Tiny "T. Rex" Found -- 150-Pound Species Came First



Newfound Raptorex kriegsteini (illustrated above) resembled T. rex in nearly every way, except size, scientists announced in September 2009.

The new dinosaur species lived millions of years before its infamous descendant, and Raptorex's discovery suggests that tyrannosaurs' stumpy arms evolved later than previously thought.

Illustration by Todd Marshall via Science


NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.