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meaning: "Piatnitzky's lizard - in honour of the palaeontologist Alejandro Mateievich Piatnitzky"
Named By: Jose Bonaparte in 1979
Time Period: Middle Jurassic, 166-164 Ma
Location: Argentina - Canadon Asfalto Formation
Size: About 4.3 meters long
Diet: Carnivore
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.

Read more about Piatnitzkysaurus at Wikipedia
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