Debate kicked off in 1988 when a single small tyrannosaur skull discovered four decades earlier was given its own species ...
Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type ...
A remarkable fossil discovery in Montana may redefine our understanding of Tyrannosaurus rex, revealing that what was once thought to be juvenile T. rex specimens are actually a distinct species ...
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