Piatnitzkysaurus
Reconstruction of the skull of Piatnitzkysaurus
- Piatnitzkysaurus Floresi Bonaparte, 1979
Piatnitzkysaurus is a genus theropod dinosaur from the Middle Jurassic ( Callovian ) of South America.
Previously, parts were associated with skeletal remains found two skulls partially preserved in the Cañadon Asphalt Formation of the Argentine province of Chubut. Paleontologists are still debating how it should be classified. Anatomically, it seems almost stand Allosaurus, although the base of the skull shows differences.
Piatnitzkysaurus was named after Alejandro Piatnitzky and Miguel Flores, two Argentine geologists. A replica of the skeleton of this theropod is exhibited at the Museum of Natural Sciences " Museo Argentino de Ciencias Naturales Bernardino Rivadavia ", Buenos Aires.
Features
The physique of the 4.3 -meter-long bipedal closely resembled that of Allosaurus, but his arms were longer and unusually strong. The weight of Piatnitzkysaurus is estimated at 275 kg. The powerful head of the predator was about 50 cm long with conical, long teeth. About the eyes to the tip of the snout ran two bone combs. On his fingers he had long claws. The burly body ran into a stiff dick.