A deer-sized T. rex ancestor shows how fast tyrannosaurs became giants
The newly discovered fossil’s name, Moros intrepidus, means ‘the harbinger of doom’

TINY TYRANNOSAUR Standing only 1.2 meters at the hip, the newly discovered Moros intrepidus (illustrated) is one of the smallest known tyrannosaurs.
Jorge Gonzalez, © L. Zanno
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