High-resolution neutron imaging and CT scans of the tyrannosaur Bistahieversor sealeyi’s 74-million-year-old skull shed light on its evolution.
Bistahieversor sealeyi skull. Collage depicts its excavation from the Bisti Wilderness Area in New Mexico in 1996.
Researchers scanned the skull of a more than 70-million-year-old tyrannosaur, dubbed the Bisti Beast, from the Bisti Badlands in New Mexico, at Los Alamos National Laboratory—the largest item to have ever undergone neutron and X-ray CT scans at the Laboratory.
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