The fearsome family of dinosaurs topped by Tyrannosaurus rex began with a miniature version of the tyrant that was only the size of a human being.
The new find from China was made public Thursday in a press conference and is already rewriting T. rex’s evolutionary story. It’d long been thought that the multiton dinosaur’s massive skull, dinky arms, and runner’s legs evolved as a set of compromises necessitated by its increasingly massive size. The new Raptorex kriegsteini proves that the T. rex’s distinctive features predated its scaling up.
Sunday, Aug 30th
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