Saurophaganax

Saurophaganax; Temporal range: Late Jurassic ;
	Holotype specimen, a dorsal neural arch
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	incertae sedis
Genus:	†Saurophaganax; Chure, 1995
Species:	†S. maximus
Binomial name
	†Saurophaganax maximus; Chure, 1995
Synonyms
	Saurophagus maximus ; Stovall, 1941 (preoccupied); Allosaurus maximus? ; (Chure, 1995) Smith, 1998;

Saurophaganax ("lord of lizard-eaters") is a dubious, chimeric genus of large saurischian dinosaur, possibly a sauropod, from the Late Jurassic (Kimmeridgian) Morrison Formation of Oklahoma, United States. This taxon was historically considered to represent a species of Allosaurus or very large allosaurid. However, re-examinations of the attributed specimens suggested that it is a chimera of multiple dinosaur genera, since some specimens most likely belong to a diplodocid sauropod, while the other referred specimens could be reassigned to a novel species of Allosaurus.