https://www.earthmagazine.org/tags/raptorex-kriegsteini/ Recent content in Raptorex Kriegsteini on EARTH Magazine Hugo en-US American Geosciences Institute. All rights reserved. Thu, 05 Jan 2012 06:41:58 -0500 https://www.earthmagazine.org/article/mini-t-rex-fossil-found-china/ Thu, 05 Jan 2012 06:41:58 -0500 https://www.earthmagazine.org/article/mini-t-rex-fossil-found-china/ <figure class="earth-figure"> <img src="https://www.americangeosciences.org/static/earth/mini-t-rex-fossil-found-china/i-283-7d9-9-11.jpg" alt="_Raptorex _closely resembled its descendent _T. rex_, but weighed as little as one-hundredth as much. Based on a fossil skeleton discovered in Inner Mongolia, China. Illustration: Todd Marshall" loading="eager" decoding="async"> <figcaption>_Raptorex _closely resembled its descendent _T. rex_, but weighed as little as one-hundredth as much. Based on a fossil skeleton discovered in Inner Mongolia, China. Illustration: Todd Marshall</figcaption> </figure> <figure class="earth-figure"> <img src="https://www.americangeosciences.org/static/earth/mini-t-rex-fossil-found-china/i-284-7d9-9-11.jpg" alt="Long-legged predator _Raptorex _was entombed in the sediment of an ancient lake margin in northern China 125 million years ago. Photo by Mike Hettwer" loading="lazy" decoding="async"> <figcaption>Long-legged predator _Raptorex _was entombed in the sediment of an ancient lake margin in northern China 125 million years ago. Photo by Mike Hettwer</figcaption> </figure> <p>The <em>Tyrannosaurus rex</em> &mdash; arguably the most famous dinosaur of all time &mdash; was also one of the most efficient predators to ever walk on Earth. With its powerful jaws, large eyes, strong hind limbs and even tiny arms, the <em>T. rex</em> was uniquely designed to swiftly run down and dispatch prey. But on Wednesday, scientists announced that those characteristic <em>T. rex</em> features were not as unique as once thought: A new fossil find shows that 60 million years earlier, a <em>T. rex</em> doppelganger &mdash; albeit much smaller &mdash; was using a very similar set of features to terrorize prey in China.</p>