|Named By:||Jose Bonaparte in 1979|
|Time Period:||Middle Jurassic, 166-164 Ma|
|Location:||Argentina - Canadon Asfalto Formation|
|Size:||About 4.3 meters long|
|Fossil(s):||Two skulls and partial post cranial remains|
|Classification:||| Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Megalosauroidea ||
Piatnitzkysaurus ( PEE-at-nits-kee-SAW-ras) is an extinct genus of megalosauroid theropod dinosaur that lived approximately 166 to 164 million years ago during the middle part of the Jurassic Period in what is now Argentina. Piatnitzkysaurus was a moderately large, lightly built, bipedal, ground-dwelling carnivore, that could grow up to 4.3 m (14.1 ft) long.