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  • Richard Conniff writes about behavior, in humans and other animals, on two, four, six, and eight legs, plus the occasional slither.

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Posts Tagged ‘CT scan’

Getting Inside a Tyrannosaur’s Head

Posted by Richard Conniff on August 16, 2017

(Photo: DOE/Los Alamos National Laboratory)

 

Researchers at Los Alamos National Laboratry have used their unique neutron-imaging and high-energy X-ray capabilities to expose the inner structures of a 74-million-year-old fossil skull. The skull belonged to  tyrannosauroid dinosaur known as the Bisti Beast, or more formally as Bistahieversor sealeyi.  The image is the highest-resolution scan of tyrannosaur skull ever done.

Here’s an excerpt from the press release:

 The results add a new piece to the puzzle of how these bone-crushing top predators evolved over millions of years.

“Normally, we look at a variety of thick, dense objects at Los Alamos for defense programs, but the New Mexico Museum of Natural History and Science was interested in imaging a very large fossil to learn about what’s inside,” said Ron Nelson, of the Laboratory’s Physics Division. Nelson was part of a team that included staff from Los Alamos National Laboratory, the museum, the University of New Mexico and the University of Edinburgh. “It turns out that high energy neutrons are an interesting and unique way to image something of this size.”

The results helped the team determine the skull’s sinus and cranial structure. Initial viewing of the computed tomography (CT) slices showed preservation of un-erupted Read the rest of this entry »

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