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Spinosaurus aegyptiacus v Tyrannosaurus rex
Topic Started: Jan 7 2012, 02:16 AM (459,216 Views)
Wolf Eagle
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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.

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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).

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Edited by Taipan, Apr 24 2015, 10:10 PM.
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Super Kaizer Ghidorah
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T.rex wins for sure. I really love bone crunchers!
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theropod
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ignore the troll: http://carnivoraforum.com/home/?c=30&mid=3940286
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retic
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Super Kaizer Ghidorah
May 14 2013, 05:39 AM
T.rex wins for sure. I really love bone crunchers!
hyenas have stronger bites than lions but lions usually beat hyenas.
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Super Kaizer Ghidorah
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chief keith
May 14 2013, 07:03 AM
Super Kaizer Ghidorah
May 14 2013, 05:39 AM
T.rex wins for sure. I really love bone crunchers!
hyenas have stronger bites than lions but lions usually beat hyenas.
So ur saying that the t.rex is a hyena and the spinosaurus is a lion?
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Super Kaizer Ghidorah
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theropod
May 14 2013, 06:16 AM
WHAT'S YOUR PROBLEM?!
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Super Kaizer Ghidorah
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Spinosaurus may be strong but
http://www.technologytell.com/gaming/files/2013/02/yoshi-birdo.jpg
T.rex can drive cars! so?
Show me another theropod that can do that!
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theropod
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Super Kaizer Ghidorah
May 15 2013, 04:49 AM
theropod
May 14 2013, 06:16 AM
WHAT'S YOUR PROBLEM?!
Rotundonasalosaurus infantilis aka T. rex is my problem.

Quote:
 
Spinosaurus may be strong but
http://www.technologytell.com/gaming/files/2013/02/yoshi-birdo.jpg
T.rex can drive cars! so?
Show me another theropod that can do that!


Someone who comes to a such thread saying "T. rex wins for sure. I really love bone crushers!" is a troll for me, I'm sorry if you don't think so but I hadn't really expected you to know that, otherwise why would you post spam like the above?
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retic
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snake and dinosaur enthusiast
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Super Kaizer Ghidorah
May 15 2013, 04:48 AM
chief keith
May 14 2013, 07:03 AM
Super Kaizer Ghidorah
May 14 2013, 05:39 AM
T.rex wins for sure. I really love bone crunchers!
hyenas have stronger bites than lions but lions usually beat hyenas.
So ur saying that the t.rex is a hyena and the spinosaurus is a lion?
im just saying that bite force isn't everything.
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Super Kaizer Ghidorah
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ok back to reality. T.rex's bite should produce superior damage to spinosaurus.
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MightyMaus
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Super Kaizer Ghidorah
May 15 2013, 05:51 AM
ok back to reality. T.rex's bite should produce superior damage to spinosaurus.
And Spinosaurus will crush Tyrannosaurus due to having a 8+ ton weight advantage.
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retic
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MightyMaus
May 15 2013, 06:07 AM
Super Kaizer Ghidorah
May 15 2013, 05:51 AM
ok back to reality. T.rex's bite should produce superior damage to spinosaurus.
And Spinosaurus will crush Tyrannosaurus due to having a 8+ ton weight advantage.
i agree. spinosaurus would also destroy tyrannosaurus rex with its massive claws.
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theropod
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it would just topple it over.
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Jinfengopteryx
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MightyMaus
May 15 2013, 06:07 AM
Super Kaizer Ghidorah
May 15 2013, 05:51 AM
ok back to reality. T.rex's bite should produce superior damage to spinosaurus.
And Spinosaurus will crush Tyrannosaurus due to having a 8+ ton weight advantage.
8 t is for sure not the minimum of a weight advantage. Than the minimum weight of Spinosaurus would be 14 t. Not that this is unlikely, but I wouldn't call that the minimum. It could aswell have weighed 11-12 t.
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Super Kaizer Ghidorah
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Jinfengopteryx
May 15 2013, 10:25 PM
MightyMaus
May 15 2013, 06:07 AM
Super Kaizer Ghidorah
May 15 2013, 05:51 AM
ok back to reality. T.rex's bite should produce superior damage to spinosaurus.
And Spinosaurus will crush Tyrannosaurus due to having a 8+ ton weight advantage.
8 t is for sure not the minimum of a weight advantage. Than the minimum weight of Spinosaurus would be 14 t. Not that this is unlikely, but I wouldn't call that the minimum. It could aswell have weighed 11-12 t.
11-12 tons huh?
The same size as Deinosuchus!
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SpinoInWonderland
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Super Kaizer Ghidorah
May 16 2013, 12:32 AM
Jinfengopteryx
May 15 2013, 10:25 PM
MightyMaus
May 15 2013, 06:07 AM
Super Kaizer Ghidorah
May 15 2013, 05:51 AM
ok back to reality. T.rex's bite should produce superior damage to spinosaurus.
And Spinosaurus will crush Tyrannosaurus due to having a 8+ ton weight advantage.
8 t is for sure not the minimum of a weight advantage. Than the minimum weight of Spinosaurus would be 14 t. Not that this is unlikely, but I wouldn't call that the minimum. It could aswell have weighed 11-12 t.
11-12 tons huh?
The same size as Deinosuchus!
Nope. The largest specimens of Deinosuchus were estimated to be ~8.5 tonnes, and more common ones around ~2.3 tonnes...

The largest Deinosuchus is in the same ballpark as the subadult Spinosaurus holotype IPHG 1912 in terms of mass.
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