New Study Brings “Dwarf” Tyrannosaur Back From Oblivion

The decades-long Nanotyrannus saga takes another turn…

Panos Grigorakakis
Tales of Prehistory
5 min readJan 5, 2024

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An artist’s reconstruction of an adult Nanotyrannus lancensis attacking a young Tyrannosaurus rex / Art by Raul Martin

A new study suggests fossils usually attributed to juvenile specimens of Tyrannosaurus rex actually belong to a separate genus of a tyrannosaur less than half the size of its famous cousin, reviving a decade-long debate among paleontologists.

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