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| Spinosaurus aegyptiacus v Tyrannosaurus rex | |
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| Tweet Topic Started: Jan 7 2012, 02:16 AM (459,293 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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| dinosaur | Jan 9 2013, 08:57 PM Post #1321 |
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Heterotrophic Organism
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Yeah aha aha aha aha see see see? That's exactly what I'm talking about here. |
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| SpinoInWonderland | Jan 9 2013, 09:20 PM Post #1322 |
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The madness has come back...
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Whatever, Mr.TyrannosaurusIsAGod |
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| theropod | Jan 9 2013, 09:30 PM Post #1323 |
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palaeontology, open source and survival enthusiast
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You are so annoying, "so you are" does imply that you are biased too, because broly claimed you where biased and 7Alx said he was too. So could you please stop twisting everything into a "yeah I was right T. rex is the best the ultimatekingofdinosaurs!!!!!"-conclusion? |
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| Godzillasaurus | Jan 9 2013, 11:50 PM Post #1324 |
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Reptile King
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You win? You have baseless opinions that are full of BS. You never support your opinion with any facts whatsoever. I'm sorry dude, but you didn't win, you lost... |
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| Godzillasaurus | Jan 9 2013, 11:52 PM Post #1325 |
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Reptile King
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Brolyeuphusion backs up his opinions with true facts. You don't even butcher yours to fit your view, you basically make up your own BS just to make your tyrannosaurus win against EVERYTHING. |
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| dinosaur | Jan 10 2013, 01:28 AM Post #1326 |
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Heterotrophic Organism
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Is that so? |
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| Black Ice | Jan 10 2013, 01:39 AM Post #1327 |
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Drom King
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Yes. |
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| Apex | Jan 10 2013, 01:39 AM Post #1328 |
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Omnivore
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Yes you would support trex over megalodon in deep water! |
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| theropod | Jan 10 2013, 02:51 AM Post #1329 |
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palaeontology, open source and survival enthusiast
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Yes that is so. In my whole nearly one year lasting time on this forum I have never encountered a member whose biase was comparable to yours, you completely make up everything that you write from thin air! |
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| Maelstrom | Jan 10 2013, 03:06 AM Post #1330 |
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Autotrophic Organism
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There hasn't been any comparisons on here for a while, so I tried to make one on GIMP.![]() Spino: 17 m (1.8 m skull) T.rex: 12.3 m Edited by Maelstrom, Jan 10 2013, 03:07 AM.
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| Godzillasaurus | Jan 10 2013, 07:12 AM Post #1331 |
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Reptile King
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Yes, and that is not the case with you... |
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| Godzillasaurus | Jan 10 2013, 07:15 AM Post #1332 |
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Reptile King
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This troll has already been detected (see the tyrannosaurus profile thread), now it is really serious. ![]() |
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| Godzillasaurus | Jan 10 2013, 07:16 AM Post #1333 |
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Reptile King
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I strongly believe that if this "dinosaur" guy gets banned or stopped, this thread will go back to normal. |
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| Godzillasaurus | Jan 10 2013, 07:17 AM Post #1334 |
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Reptile King
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You know, that size comparison has made me change my views on this fight a little bit. I now think the spinosaurus will have a greater chance. |
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| Black Ice | Jan 10 2013, 07:21 AM Post #1335 |
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Drom King
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Dinosaur sounds like hes superpredators age. |
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Yay I win, I win, I win! Go dinosaur, go dinosaur, go dinosaur, It's ur birthday!



2:23 AM Jul 14