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| Spinosaurus aegyptiacus v Tyrannosaurus rex | |
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| Tweet Topic Started: Jan 7 2012, 02:16 AM (459,284 Views) | |
| Wolf Eagle | Jan 7 2012, 02:16 AM Post #1 |
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M E G A P H Y S E T E R
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Tyrannosaurus rex Tyrannosaurus is a genus of coelurosaurian theropod dinosaur. The species Tyrannosaurus rex (rex meaning "king" in Latin), commonly abbreviated to T. rex, is a fixture in popular culture. It lived throughout what is now western North America, with a much wider range than other tyrannosaurids. Fossils are found in a variety of rock formations dating to the Maastrichtian age of the upper Cretaceous Period, 67 to 65.5 million years ago.[1] It was among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event. Like other tyrannosaurids, Tyrannosaurus was a bipedal carnivore with a massive skull balanced by a long, heavy tail. Relative to the large and powerful hindlimbs, Tyrannosaurus forelimbs were small, though unusually powerful for their size, and bore two clawed digits. Although other theropods rivaled or exceeded Tyrannosaurus rex in size, it was the largest known tyrannosaurid and one of the largest known land predators. By far the largest carnivore in its environment, Tyrannosaurus rex may have been an apex predator, preying upon hadrosaurs and ceratopsians, although some experts have suggested it was primarily a scavenger. The debate over Tyrannosaurus as apex predator or scavenger is among the longest running in paleontology. Tyrannosaurus rex was one of the largest land carnivores of all time; the largest complete specimen, FMNH PR2081 ("Sue"), measured 12.8 metres (42 ft) long, and was 4.0 metres (13.1 ft) tall at the hips. Mass estimates have varied widely over the years, from more than 7.2 metric tons (7.9 short tons), to less than 4.5 metric tons (5.0 short tons), with most modern estimates ranging between 5.4 and 6.8 metric tons (6.0 and 7.5 short tons). Packard et al. (2009) tested dinosaur mass estimation procedures on elephants and concluded that dinosaur estimations are flawed and produce over-estimations; thus, the weight of Tyrannosaurus could be much less than usually estimated. Other estimations have concluded that the largest known Tyrannosaurus specimens had a weight exceeding 9 tonnes. ![]() Spinosaurus aegyptiacus Spinosaurus is a genus of theropod dinosaur which lived in what is now North Africa, from the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago. Spinosaurus may be the largest of all known carnivorous dinosaurs, even larger than Tyrannosaurus and Giganotosaurus. Estimates published in 2005 and 2007 suggest that it was 12.6 to 18 metres (41 to 59 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weight. The skull of Spinosaurus was long and narrow like that of a modern crocodilian. Spinosaurus is thought to have eaten fish; evidence suggests that it lived both on land and in water like a modern crocodilian. The distinctive spines of Spinosaurus, which were long extensions of the vertebrae, grew to at least 1.65 meters (5.4 ft) long and were likely to have had skin connecting them, forming a sail-like structure, although some authors have suggested that the spines were covered in fat and formed a hump. Multiple functions have been put forward for this structure, including thermoregulation and display. Dal Sasso et al. (2005) assumed that Spinosaurus and Suchomimus had the same body proportions in relation to their skull lengths, and thereby calculated that Spinosaurus was 16 to 18 meters (52 to 59 ft) in length and 7 to 9 tonnes (7.7 to 9.9 short tons) in weight. The Dal Sasso et al. estimates were criticized because the skull length estimate was uncertain, and (assuming that body mass increases as the cube of body length) scaling Suchomimus which was 11 meters (36 ft) long and 3.8 tonnes (4.2 short tons) in mass to the range of estimated lengths of Spinosaurus would produce an estimated body mass of 11.7 to 16.7 tonnes (12.9 to 18.4 short tons).
Edited by Taipan, Apr 24 2015, 10:10 PM.
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| Godzillasaurus | Jan 15 2013, 12:59 PM Post #1456 |
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Reptile King
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You can't really "help". The best way to deal with idiots like this guy is to simply ignore them. The more attention they receive, the more power they gain. |
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| mega t.rex the magnificent | Jan 15 2013, 01:01 PM Post #1457 |
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Autotrophic Organism
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I got an idea |
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| Godzillasaurus | Jan 15 2013, 01:11 PM Post #1458 |
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Reptile King
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Ok. What is it? |
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| mega t.rex the magnificent | Jan 15 2013, 01:29 PM Post #1459 |
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Autotrophic Organism
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This will get his attention to make him realize how many members disagree with him, and how far he's come trust me. Just reply if u agree. Hope brolyeuphyfusion does too. It's just off topic for a while. Ok members of carnivora reply I u agree! We must get rid of a serious problem. The problem........ a fanboyish member named dinosaur with so many baseless facts and statements that's gone WAY OUT OF HAND!!
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| Godzillasaurus | Jan 15 2013, 01:33 PM Post #1460 |
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Reptile King
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That is exactly my point. If we do something of that matter, he will just keep trolling. It's useless. |
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| mega t.rex the magnificent | Jan 15 2013, 01:41 PM Post #1461 |
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Autotrophic Organism
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But I know what to tell him. |
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| SpinoInWonderland | Jan 15 2013, 03:31 PM Post #1462 |
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The madness has come back...
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We tried to fix the problem and failed. He denied any and all evidence presented against his baseless statements... |
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| blaze | Jan 15 2013, 03:52 PM Post #1463 |
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Carnivore
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Quote train, stop it. |
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| mega t.rex the magnificent | Jan 15 2013, 04:20 PM Post #1464 |
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Autotrophic Organism
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Well anyway back on topic, I favor tyrannosaurus |
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| DinosaurMichael | Jan 15 2013, 11:44 PM Post #1465 |
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Apex Predator
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Well in my opinion it's 50/50 because of the size advantage Spinosaurus has. On average Spinosaurus was 12 tons. Not to mention, while not as strong as the T-Rexes bite force, which is 5-6 tons. Spinosaurus actually had a very strong bite force of it's own, which would of been 3 tons. Edited by DinosaurMichael, Jan 15 2013, 11:51 PM.
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| Godzillasaurus | Jan 15 2013, 11:44 PM Post #1466 |
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Reptile King
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Why though? I used to favor tyrannosaurus in this fight, but I was proven wrong when I heard of sources that indicate a spinsaurus bite force of 2-3 tons. Tyrannosaurus may be very heavily-built, but given the size of its opponent, it will be a very painstaking fight. |
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| mega t.rex the magnificent | Jan 16 2013, 02:36 AM Post #1467 |
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Autotrophic Organism
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Isn't tyrannosaurus s bite force up to 13000 pofpsi |
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| Maelstrom | Jan 16 2013, 03:01 AM Post #1468 |
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Autotrophic Organism
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Well different studies produces different results, of course T.rex's bite is stronger than Spino's, but the point is Spino did not necessarily have a weak bite. You don't need a 6 tonne bite force to kill. |
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| Godzillasaurus | Jan 16 2013, 04:43 AM Post #1469 |
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Reptile King
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Contrary to popular belief, spinosaurus did not have a weak bite. Its bite wasn't nearly as powerful at tyrannosaurus, but it was not a weak animal. |
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| Ausar | Jan 16 2013, 05:44 AM Post #1470 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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That's the maximum. The minimum T.rex bite force was 7,000 lbs. |
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