Home Previous Random Next Search
meaning: "Alvarez's lizard"
Named By: Jose F. Bonaparte in 1991
Time Period: Late Cretaceous, 86-83 Ma
Location: Argentina - Bajo de la Carpa Formation
Size: Estimated about 2 meters long
Diet: Insectivore
Fossil(s): Partial remains
Classification: | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Alvarezsauroidea | Alvarezsauridae |
Also known as: | Achillesaurus |

Alvarezsaurus ("Alvarez's lizard") is a genus of small alvarezsaurid dinosaur from the Late Cretaceous period of Argentina, approximately 86 - 83 million years ago. Estimates suggest that it measured about 2 meters (6.5 ft) in length and weighed approximately 20 kg (45 lbs). Gregory S. Paul estimated in 2010 its weight at 3 kg and length at 1 m. It was found in the Bajo de la Carpa Formation and was named by paleontologist Jose Bonaparte in 1991 after the historian Don Gregorio Alvarez. The type species is A. calvoi.

Read more about Alvarezsaurus at Wikipedia
PaleoCodex is a weekend hack by Saurav Mohapatra