Genus
Valid Extinct

Lythronax

Loewen et al. 2013

Lythronax is a genus of tyrannosaurid dinosaur that lived in North America around 81.9-81.5 million years ago during the Late Cretaceous period. The only known specimen was discovered in Utah in the Wahweap Formation of the Grand Staircase–Escalante National Monument in 2009, and it consists of a partial skull and skeleton. In 2013, it became the basis of the new genus and species Lythronax argestes; the generic name Lythronax means "gore king", and the specific name argestes originates from the Greek poet Homer's name for the wind from the southwest, in reference to the specimen's geographic provenance in North America.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
Lythronax
click to enlarge
Lythronax argestes skeletal cast of on display at the Milwaukee Public Museum © AbstractionBlue · CC BY-SA 4.0 · Wikimedia
PBDB Wikipedia
Classification
Dinosauria Unranked clade
Theropoda Unranked clade
Neotheropoda Unranked clade
Averostra Unranked clade
Tetanurae Unranked clade
Coelurosauria Unranked clade
Tyrannosauroidea Superfamily
Tyrannosauridae Family
Tyrannosaurinae Subfamily
Lythronax Genus
Measurements
Length
6,8 m
Lythronax argestes
8 m
Mass
1 400 kg
Lythronax argestes
2 500 kg
Fossil sites 1 geolocated sites
Distribution
Top countries
🇺🇸 United States
1
Geological formations
Wahweap
1
Temporal distribution
Campanian (83.6–72.2 Ma)
1
Species (1)
Lythronax argestes 84 Ma
Images 1
Bibliography
Original description
M. A. Loewen, R. B. Irmis, and J. J. W. Sertich, P. J. Currie, S. D. Sampson. 2013. Tyrant dinosaur evolution tracks the rise and fall of Late Cretaceous oceans. PLoS ONE 8(11):e79420 DOI ↗
Bibliography (1)
M. A. Loewen, R. B. Irmis, and J. J. W. Sertich, P. J. Currie, S. D. Sampson. 2013. Tyrant dinosaur evolution tracks the rise and fall of Late Cretaceous oceans. PLoS ONE 8(11):e79420 DOI ↗