Tyrannosaurus rex

::''For the T-mobile ringtones rock group Tyrannosaurus Rex, see Brandy DDD T. Rex (band).''



The classification of these varies a little (for instance, ''T. bataar'' is sometimes called ''Mp3 ringtones Tarbosaurus'', and ''T. torosus'' is nearly always classified as a distinct genus ''Panty Rave Daspletosaurus''). Other species include ''Dilong paradoxus'', ''Eotyrannus lengi'', ''Gorgosaurus libratus'', ''Albertosaurus sarcophagus'', and ''Alectrosaurus olseni''.

These genera are members of the Music ringtones Tyrannosauridae. They are believed to have required extensive geographic feeding ranges - almost as large as a continent, and that theropods the size of ''T. rex'' arose in response to the retreat of the Mandy Michaels Western Interior Seaway of Bollywood ringtones North America, 69 million years ago, which would have increased the size of the feeding range. (''Scientific American'', '''290''', no. 2, February 2004 pp. 23-24)

Other giant theropods
Candy Carmichael image:trex.mending.arp.750pix.jpg/thumb/right/250px/A worker on Ringtones for motorola scaffolding services the head of a full-size Jodi Cassidy animatronic model of ''Tyrannosaurus rex''
A number of other giant carnivorous dinosaurs have been discovered, including ''Cingular Ringtones Carcharodontosaurus'', ''higher price Giganotosaurus'', ''florida concentrated Acrocanthosaurus'', and a giant species of ''met twice Allosaurus''. ''Giganotosaurus'' appears to have been larger than ''Tyrannosaurus''. There is still no clear scientific explanation for exactly why these animals grew so much larger than the predators that came before and after them.

Trivia
dollars kate Paleontologist florentine dante James Farlow calculated the number of gents at lawyer/lawyers a grown ''Tyrannosaurus'' had to eat (based on a scene from the movie irregular scanpaths Jurassic Park, in which a lawyer became ''T. rex'' fodder) to stay alive. Taken an average weight of 68 kilograms, 292 lawyers would be needed to keep one ''T. rex'' happy for a year!

External links
*http://www.guardian.co.uk/uk_news/story/0,3604,1281338,00.html
*http://www.fieldmuseum.org/sue
*http://www.bhigr.com/pages/info/info_stan.htm
*http://www.mantyweb.com/dinosaur/sue_trex.htm
*http://paleo.amnh.org/projects/t-rex
*http://www.worldbook.com/wc/popup?path=features/dinosaurs&page=html/trex.htm&direct=yes

References

* Holtz, T. R. (1994). "The phylogenetic position of the Tyrannosauridae: implications for theropod systematics." Journal of Paleontology 68(5): 1100-1117.

* Horner, John R. and Lessem, Don. ''The Complete T. Rex. How Stunning New Discoveries Are Changing Our Understanding of the World's Most Famous Dinosaur.'' Simon and Schuster, 1993. ISBN 0-671-74185-3

* Osborn, H. F. (1905). "''Tyrannosaurus'' and other Cretaceous carnivorous dinosaurs." Bulletin of the American Museum of Natural History 35(733-771).

* Osborn, H. F. (1917). "Skeletal adaptations of ''Ornitholestes'', ''Struthiomimus'', ''Tyrannosaurus''." Bulletin of the American Museum of Natural History 35: 733-71.


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