Thursday, September 26, 2013

Giganotosaurus carolinii

      Giganotosaurus' full name is giganotosaurus carolinii. Pronunciation: JYE-ga-NO-toe-SORE-us CARE-oh-LEAN-ee-eye. Giganotosaurus was the longest meat-eating dinosaur yet discovered is Giganotosaurus, a 44-46 ft long behemoth, who weighed about 8 tons and stood 12 feet tall (at the hips). It walked on two legs, had a brain the size of a banana, and an enormous jaws with 8-inch long serrated teeth in a 6-foot  long skull. Giganotosaurus was a theropod from the mid-Cretaceous, living about 100-95 million years ago, toward the end of the Mesozoic Era, the "Age of Reptiles".                                                                                Giga-noto-saurus means "giant southern reptile". Its fossil was unearthed in Argentina in 1994. They found 70% of the skeleton has been found. You will never guess what they found near the Giganotosaurus?!?! Fossils were found of 75-foot-long plant eaters, presumably victims of this Giganotosaurus. 

Wednesday, September 11, 2013

Allosaurus, "Meat Eating " Reptile

 Allosaurus (Al-oh-SAWER-us) Whose name means "strange lizard." I think they were unique not strange. He was a ginormous meat eater with a huge appetite. Who topped the scales at around a mere 2 tons and was about 40 feet long! He had long forearms which had 3 claw fingers.  A small head, it was only 3 foot big with 2 ridges over its eyes. I would definitely run if I seen it coming. His finger claws where 6 inches long. He would leave a mark!

They used their impressive tails for balance. They grabbed their pray with their sharp claws and held on tight so they wouldn't drop their food. Then they proceed to ripe apart their prey with their razor sharp teeth and claws and feast way. Their favorite pray was the ornithiscians and sauropods. It is thought that they  may have hunted in packs or alone. Alleosaurus was the top predator during the Late Jurassic Period.

Allosaurus lived in Canada and U.S.A. in the Late Jurassic Period (about 150 million years ago). Utah has the biggest fossil site in the U.S.A. There where 60 skeletons of juvenile and adult Allosaurus  found at a single site.  As fas as  evolution  goesCoelophysis is 1st because it lived in the Triassic period , Allosaurus is 2nd because it lived in the Jurassic period, and T-Rex is 3rd because it lived in the Cretaceous period. Allosaurus was king in the Jurassic period because he was the fiercest of all hunters. 


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