Alvarezsaurus
Alvarezsaurus calvoi
Alvarezsaurus (; "Don Gregorio Alvarez's lizard") is a genus of alvarezsaurid dinosaur from the Late Cretaceous, living in Argentina approximately 86 - 83 million years ago. It was a small dinosaur, measuring 1–1.4 m (3.3–4.6 ft) long and weighing approximately 3 kg (6.6 lb). It was found in the Bajo de la Carpa Formation and was named by paleontologist José Bonaparte in 1991 after the historian Don Gregorio Alvarez. The type species is A. calvoi.
- Family
- Alvarezsauridae
- Order
- Saurischia
- Period
- Cretaceous (85.7–83.6 Ma)
- Diet
- Carnivore
- Length
- 1.8–2.5 m
- Weight
- 8–15 kg
- Type locality
- Bajo de la Carpa Formation, Neuquén, Argentina
- Holotype
- MUCPv-54
- PBDB
- txn:64774