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Spinosaurus aegyptiacus v Tyrannosaurus rex
Topic Started: Jan 7 2012, 02:16 AM (459,291 Views)
Wolf Eagle
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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.

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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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Replies:
SpinoInWonderland
The madness has come back...
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TheROC
Jan 10 2013, 01:25 PM
This is a...very strange thread the past few pages.
Well you can blame that biased dinosaur kid for that...
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SpinoInWonderland
The madness has come back...
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Godzillaman
Jan 10 2013, 07:24 AM
Black Ice
Jan 10 2013, 07:21 AM
Dinosaur sounds like hes superpredators age.
Or maybe he will throw us a curve-ball and claim himself to be 25 or something.
He claims himself to be about 19 actually...
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Black Ice
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Drom King
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Leave the kid alone broly. Like seriously what does a supposed 27yr old look like picking on a kid?
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MysteryMeat
Herbivore
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Maybe you guys could ignore that kid and stop spamming the crap out of this thread.
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dinosaur
Heterotrophic Organism
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brolyeuphyfusion
Jan 10 2013, 01:49 PM
TheROC
Jan 10 2013, 01:25 PM
This is a...very strange thread the past few pages.
Well you can blame that biased dinosaur kid for that...
Ahhhhh!!! Your a monster!! realmad
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dinosaur
Heterotrophic Organism
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brolyeuphyfusion
Jan 10 2013, 01:52 PM
Godzillaman
Jan 10 2013, 07:24 AM
Black Ice
Jan 10 2013, 07:21 AM
Dinosaur sounds like hes superpredators age.
Or maybe he will throw us a curve-ball and claim himself to be 25 or something.
He claims himself to be about 19 actually...
I am 19. ;)
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Black Ice
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Drom King
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Oh shit.......... I'm done here.
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Temnospondyl
Stegocephalia specialist.
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Maelstrom
Jan 10 2013, 03:06 AM
There hasn't been any comparisons on here for a while, so I tried to make one on GIMP.

Posted Image

Spino: 17 m (1.8 m skull)

T.rex: 12.3 m

Actuallu, T-Rex was 12,2 m. long. In the comparassion, it's far too tall. Use Hartmann's skeletal or this
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Maelstrom
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Autotrophic Organism
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LophoFan14
Jan 10 2013, 08:48 PM
Maelstrom
Jan 10 2013, 03:06 AM
There hasn't been any comparisons on here for a while, so I tried to make one on GIMP.

Posted Image

Spino: 17 m (1.8 m skull)

T.rex: 12.3 m

Actuallu, T-Rex was 12,2 m. long. In the comparassion, it's far too tall. Use Hartmann's skeletal or this
That T.rex is Sue, who was 12.29 m long. As for it being tall these were the most accurate reconstructions I could find with skin on. Theres several other comparisons using Hartman's skeletals on previous pages, I think I made one too with them. I rather posted this one instead of a skeletal comparison (I can post if you want) because it has better aesthetics, it isn't too far anyway. T.rex isn't too tall it still measures slightly less than 4 m at the hip - maybe because it is rearing up it looks taller?
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Apex
Omnivore
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dinosaur
Jan 10 2013, 01:55 PM
brolyeuphyfusion
Jan 10 2013, 01:52 PM
Godzillaman
Jan 10 2013, 07:24 AM
Black Ice
Jan 10 2013, 07:21 AM
Dinosaur sounds like hes superpredators age.
Or maybe he will throw us a curve-ball and claim himself to be 25 or something.
He claims himself to be about 19 actually...
I am 19. ;)
I don't think you intended this but you made me laugh very hard
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Godzillasaurus
Reptile King
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dinosaur
Jan 10 2013, 01:55 PM
brolyeuphyfusion
Jan 10 2013, 01:52 PM
Godzillaman
Jan 10 2013, 07:24 AM
Black Ice
Jan 10 2013, 07:21 AM
Dinosaur sounds like hes superpredators age.
Or maybe he will throw us a curve-ball and claim himself to be 25 or something.
He claims himself to be about 19 actually...
I am 19. ;)
If you're 19 then please act like it. We have already proven you wrong on multiple occasions, yet you still keep posting opinionated crap that is backed up by no science whatsoever.
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dinosaur
Heterotrophic Organism
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Godzillaman
Jan 11 2013, 06:17 AM
dinosaur
Jan 10 2013, 01:55 PM
brolyeuphyfusion
Jan 10 2013, 01:52 PM
Godzillaman
Jan 10 2013, 07:24 AM
Black Ice
Jan 10 2013, 07:21 AM
Dinosaur sounds like hes superpredators age.
Or maybe he will throw us a curve-ball and claim himself to be 25 or something.
He claims himself to be about 19 actually...
I am 19. ;)
If you're 19 then please act like it. We have already proven you wrong on multiple occasions, yet you still keep posting opinionated crap that is backed up by no science whatsoever.
I saw that answer coming. I am acting like it.
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theropod
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palaeontology, open source and survival enthusiast
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you're not, you are jsut being a fanboy, and every single post of yours has been totally debunked!
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Godzillasaurus
Reptile King
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dinosaur
Jan 11 2013, 06:32 AM
Godzillaman
Jan 11 2013, 06:17 AM
dinosaur
Jan 10 2013, 01:55 PM
brolyeuphyfusion
Jan 10 2013, 01:52 PM
Godzillaman
Jan 10 2013, 07:24 AM
Black Ice
Jan 10 2013, 07:21 AM
Dinosaur sounds like hes superpredators age.
Or maybe he will throw us a curve-ball and claim himself to be 25 or something.
He claims himself to be about 19 actually...
I am 19. ;)
If you're 19 then please act like it. We have already proven you wrong on multiple occasions, yet you still keep posting opinionated crap that is backed up by no science whatsoever.
I saw that answer coming. I am acting like it.
Says the guy who thinks tyrannosaurus would kill anything, even a sauropod that is at least 100 tons heavier.
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Ausar
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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dinosaur
Jan 11 2013, 06:32 AM
Godzillaman
Jan 11 2013, 06:17 AM
dinosaur
Jan 10 2013, 01:55 PM
brolyeuphyfusion
Jan 10 2013, 01:52 PM
Godzillaman
Jan 10 2013, 07:24 AM
Black Ice
Jan 10 2013, 07:21 AM
Dinosaur sounds like hes superpredators age.
Or maybe he will throw us a curve-ball and claim himself to be 25 or something.
He claims himself to be about 19 actually...
I am 19. ;)
If you're 19 then please act like it. We have already proven you wrong on multiple occasions, yet you still keep posting opinionated crap that is backed up by no science whatsoever.
I saw that answer coming. I am acting like it.
Why can't you just accept that Tyrannosaurus is not the strongest dinosaur? It never was, and it never will be.
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