Altispinax (s; `with high spines`) is a genus of large predatory theropod dinosaur from the Early Cretaceous (Barremian) Obernkirchen Sandstein of Niedersachsen, Germany. It is only known from a single tooth. Material has also been referred to it from the Hastings Beds (Valanginian), Purbeck Beds (Early Cretaceous), and Lower Greensand (Aptian) .....
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http://en.wikipedia.org/wiki/Altispinax
(pronounced AL-tee-SPY-nax) Altispinax (meaning 'high spine') is doubtful genus of dinosaurs; it is known from only a single tooth. The vertebral material originally found (which gave this dinosaur its name) has been assigned the name Becklespinax. Altispinax was a large meat-eating dinosaur of unknown length, perhaps about about 30 feet (9 m) long...
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http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
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