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Original drawing of Lythronax

sharp-clawed runner

Lythronax

Say it like this: “LY-thro-nax”

Lythronax argestes

Lythronax ate meat and walked on two legs. It lived in the Late Cretaceous. Bones have been found in the United States.

When
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Named in
2013 · Loewen, M. A.; Irmis, R. B.; Sertich, J. J. W.; Currie, P. J.; Sampson, S. D.
Hip height
2.1 m · 7 ft
Length
5–8 m · 16–26 ft
Weight
0.5–2.5 tonnes
Found in
the United States · Wahweap
Food and walking
Carnivore · Two legs
Kind
sharp-clawed runner · Theropod
Family branch
Tyrannosaurinae

The story in short

In 2013, M. A. Loewen and colleagues published the name Lythronax.

It lived in the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Wahweap Formation. It was a carnivore and walked on two legs.

Published estimates put Lythronax at a length near 5–8 m, hips about 2.1 m high, and a body mass around 0.5–2.5 tonnes.

On the family tree it sits in Tyrannosaurinae, among the theropod dinosaurs.

Close relatives