(Piatnitzky’s lizard - in honour of the palaeontologist Alejandro
Named By: Jose Bonaparte - 1979.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Theropoda, Megalosauroidea.
Species: P. floresi (type).
Size: About 4.3 meters long.
Known locations: Argentina - Canadon Asfalto Formation.
Time period: Callovian of the Jurassic.
Fossil representation: Two skulls and partial post cranial remains.
considered to be a megalosauroid theropod, Piatnitzkysaurus
smaller medium sized theropod of the Jurassic. As a predator
Piatnitzkysaurus probably hunted other small
dinosaurs and possibly
even those slightly larger than itself. It is also almost a certainty
that Piatnitzkysaurus would scavenge the carcasses
of dead dinosaurs
when able, since scavenging is a frequent and often observed feeding
strategy in most predatory animals that are capable of killing their
Hailing from the Canadon Asfalto Formation, Piatnitzkysaurus likely lived alongside other dinosaurs such as Eoabelisaurus, Patagosaurus, Volkheimeria and Tehuelchesaurus. However it is actually a dinosaur from France called Piveteausaurus that is considered to be one of the dinosaurs most similar to Piatnitzkysaurus in form.
- Dinosaurs: A Jurassic assemblage from Patagonia, Jose Bonaparte - 1979.
- A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods, R. B. J. Benson - 2010.
- Braincase structure of the Middle Jurassic theropod dinosaur Piatnitzkysaurus, Rauhut - 2004.