Tracking an ancient killer.

Sci Am

Geology Department, Macalester College.

Published: February 2007

Large meat-eating dinosaur Majungatholusatopus (above) met an untimely end some 70 million years ago in what is now northwestern Madagascar (opposite page, top]. Members of the authors' team carefully excavated the remains, including a jaw with serrated teeth used to slice through flesh (right), and packed them in plaster for transport to the U.S. (opposite page, bottom), where the researchers studied the fossils in detail for clues to the cause of death.

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