- Sonorasaurus thompsoni
- Ratkevich, 1998
- Meaning of generic name
- "Sonora lizard" named after the place of discovery, Sonoran Desert
- Meaning of specific name
- Named after Richard Thompson, he discovered the specimen in 1995
- Body Length: 55 ft (16.7 m)?
- Partial skeleton including a complete hind foot (pes), numerous vertebrae, humerus, pelvic remains, and a complete crushed skull.
- Age and Distribution
- Horizon: Turney Ranch Formation, Lower-Upper Cretaceous Albian-Cenomanian Locality: Chihuahua Desert, Sonoran Desert (southeast of Tucson), Arizona, U.S.A.
- Dinosauria Saurischia Sauropodomorpha Sauropoda Macronaria Brachiosauridae
- Further Reading
- Ratkevich, R (1998). "New Cretaceous brachiosaurid dinosaur, Sonorasaurus thompsoni gen et sp. nov, from Arizona." Arizona-Nevada Academy of Science 31: 71-82.
Tuesday, 3 December 2013
In 1994 Richard Thompson, a geology student at the University of Arizona stumbled across several bone fragments in the Sonoran Desert of Arizona. The specimen turned out to be a completely new type of brachiosaurid dinosaur and the first known sauropod from the Middle Cretaceous of North America. Gouge marks discovered on the bones of Sonorasaurus and a tooth discovered with the bones belonging to Acrocanthosaurus suggests it was preyed upon.