Deinodon

Deinodon
Temporal range: Late Cretaceous,
Lectotype tooth of D. horridus (specimen ASNP 9534)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Superfamily: Tyrannosauroidea
Family: Tyrannosauridae
Subfamily: Deinodontinae
Cope, 1866 emend Brown, 1914 sensu Matthew and Brown, 1922
Genus: Deinodon
Leidy, 1856
Type species
Deinodon horridus
Leidy, 1856
Synonyms
  • Megalosaurus horridus (Leidy, 1856) Leidy, 1857
  • Aublysodon horridus (Leidy, 1856) Cope, 1868
  • Aublysodon lateralis Cope, 1876
  • Dryptosaurus kenabekides Hay, 1899
  • Deinodon lateralis (Cope, 1876) Hay, 1902
  • Deinodon kenabekides (Hay, 1899) Olshevsky, 1995

Deinodon (Greek for "terrible tooth") is a dubious genus of tyrannosaurid dinosaur containing a single species, Deinodon horridus, which is known only from a set of teeth found in the Late Cretaceous Judith River Formation of Montana and named by paleontologist Joseph Leidy in 1856. These were the first tyrannosaurid remains to be described and had been collected by Ferdinand Vandeveer Hayden. The teeth of Deinodon were slightly heterodont, and the holotype of Aublysodon can probably be assigned to the former.