Look up: Opisthocoelicaudia

1. Opisthocoelicaudia
   (pronounced oh-PIS-tho-SEEL-ih-CAWD-ee-ah) Opisthocoelicaudia meaning hollow-backed tail (vertebrae)) was a sauropod dinosaur (perhaps a camarasaurid) that lived during the late Cretaceous period . This large quadruped was about 34 ft (10.5 m) long and weighed roughly 23700 kg; its femur (thigh bone...
   Found on http://www.enchantedlearning.com/subject
   
   
2. Opisthocoelicaudia
   Opisthocoelicaudia was a dinosaur of the Cretaceous period. It was a large, bulky dinosaur about twelve metres long that walked on all-fours with a long tail related to Camarasaurus and Euhelopus, from which we guess it also had a long neck. Remains of Opisthocoelicaudia comprising a head and neck-l...
   Found on http://www.probertencyclopaedia.com/brow
   
   
3. Opisthocoelicaudia
   `Opisthocoelicaudia` (from Greek opisthe back, koilos hollow, and Latin cauda tail, meaning posterior cavity tail) was 12-metre-long (39 feet) sauropod dinosaur of the Late Cretaceous Period discovered in Mongolia in 1965 by Polish and Mongolian scientists...
   Found on http://en.wikipedia.org/wiki/Opisthocoel