|Named By:||Daniel Chure in 1995|
|Time Period:||Late Jurassic, 150 Ma|
|Location:||USA, Oklahoma - Morrison Formation. Possibly New Mexico as well|
|Size:||Estimated 13 meters long|
|Fossil(s):||Partial remains of the post cranial skeleton, possibly representing several individuals. Additional post cranial remains possibly also from New Mexico|
|Classification:||| Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Allosauridae ||
|Also known as:||| Saurophagus maximus ||
Saurophaganax ("lord of lizard-eaters") is a genus of allosaurid dinosaur from the Morrison Formation of Late Jurassic Oklahoma (latest Kimmeridgian age, about 151 million years ago), USA. Some paleontologists consider it to be a species of Allosaurus (A. maximus). Saurophaganax represents a very large Morrison allosaurid characterized by horizontal laminae at the bases of the dorsal neural spines above the transverse processes, and "meat-chopper" chevrons. The maximum size of S. maximus has been estimated at anywhere from 10.5 metres (34 ft) to 13 m (43 ft) in length, and around 3 tonnes (3.0 long tons; 3.3 short tons) in weight.