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Spinosaurus aegyptiacus v Tyrannosaurus rex
Topic Started: Jan 7 2012, 02:16 AM (459,208 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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SpinoInWonderland
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Jinfengopteryx
Jul 4 2013, 04:55 AM
Toxic Frog
Jul 4 2013, 04:08 AM
The largest specimen on record weighed around 190 t, but she was approximately 40 t heavier than what is considered to be a "typical" large individual.
Typical blue whales don't weigh 150 t.
Typical large individual, not typical average individual.
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Shaochilong
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As Broly pointed out, I said "typical large individuals.
150 t seems to be the cut-off point in terms of size for mst blue whales with the exception of a couple outsized individuals. The majority of adult blue whales are smaller than that; around 120 t.

Edited by Shaochilong, Jul 4 2013, 05:05 AM.
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theropod
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Average reportedly is below 100t
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Godzillasaurus
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Quote:
 
^so what is your point if even you think it is ridiculous.

Besides, Mosasaurus itself is also a very late mosasaur and possibly also tunniform, like the shape that is presumed for Platecarpus and Prognathodon. Tough I must say deep-bodied is a bit exagerated looking at it: http://static.guim.co.uk/sys-images/Guardian/Pix/pictures/2010/9/1/1283345206264/Platecarpus-004.jpg

a 20t estimate would only make sense with such a body shape. For a serpentine, elongate mosasaur, no way it would be even close. And still, it would definitely be at a pretty liberal elnght figure, tough I wouldn't totally exclude this.


My point is that a good number of people tend to believe in ridiculous size estimates. According to some sources, mosasaurus was well over 5 tons heavier than spinosaurus, even though spinosaurus was so much more bulky. Sure, mosasaurus was bulkier than other large mosasaurs like tylosaurus, but it certainly wasn't heavily-bodied when comparing it to spinosaurus!

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You can not compare the two animals. The mosasaurs lived in water, where it is easier to support its own weight. By the same reasoning, Supersaurus is slighty less than 200 tons, since it was longer than the blue whale. I think that Spinosaurus is around 12 tons.


When was I ever comparing them? It should be a fact that spinosaurus was a lot more heavily-built than even the most robust of mosasaurs. I was never comparing them, just highlighting the flaws in some size estimates.

And why do you believe that supersaurus was almost 200 tons??? Supersaurus was WAAAAAAAY lighter than that! It was most likely around the 40-45 ton size range. Unless you were talking about amphicoelias(?).
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Teratophoneus
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Godzillasaurus
Jul 4 2013, 07:06 AM
Quote:
 
^so what is your point if even you think it is ridiculous.

Besides, Mosasaurus itself is also a very late mosasaur and possibly also tunniform, like the shape that is presumed for Platecarpus and Prognathodon. Tough I must say deep-bodied is a bit exagerated looking at it: http://static.guim.co.uk/sys-images/Guardian/Pix/pictures/2010/9/1/1283345206264/Platecarpus-004.jpg

a 20t estimate would only make sense with such a body shape. For a serpentine, elongate mosasaur, no way it would be even close. And still, it would definitely be at a pretty liberal elnght figure, tough I wouldn't totally exclude this.


My point is that a good number of people tend to believe in ridiculous size estimates. According to some sources, mosasaurus was well over 5 tons heavier than spinosaurus, even though spinosaurus was so much more bulky. Sure, mosasaurus was bulkier than other large mosasaurs like tylosaurus, but it certainly wasn't heavily-bodied when comparing it to spinosaurus!

Quote:
 
You can not compare the two animals. The mosasaurs lived in water, where it is easier to support its own weight. By the same reasoning, Supersaurus is slighty less than 200 tons, since it was longer than the blue whale. I think that Spinosaurus is around 12 tons.


When was I ever comparing them? It should be a fact that spinosaurus was a lot more heavily-built than even the most robust of mosasaurs. I was never comparing them, just highlighting the flaws in some size estimates.

And why do you believe that supersaurus was almost 200 tons??? Supersaurus was WAAAAAAAY lighter than that! It was most likely around the 40-45 ton size range. Unless you were talking about amphicoelias(?).
No, I don't think that Supersaurus was almost 200 tons, more like to 35-40 tons, I only want to mean with the same reasonament (or compare two completely different animals, one is longer), Supersaurus is almost 200 tons because it was slighty longer than blue whale.
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Godzillasaurus
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Quote:
 
No, I don't think that Supersaurus was almost 200 tons, more like to 35-40 tons, I only want to mean with the same reasonament (or compare two completely different animals, one is longer), Supersaurus is almost 200 tons because it was slighty longer than blue whale.


I know that comparing two completely different kinds of animals is not exactly reasonable, but it should be extremely obvious that spinosaurus grew to heavier sizes than the largest mosasaurs.
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Jinfengopteryx
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Toxic Frog
Jul 4 2013, 05:01 AM
As Broly pointed out, I said "typical large individuals.
150 t seems to be the cut-off point in terms of size for mst blue whales with the exception of a couple outsized individuals. The majority of adult blue whales are smaller than that; around 120 t.

I looked it up and you are right, 150 t specimen are typical large specimen:
http://www.marinemammalcenter.org/education/marine-mammal-information/cetaceans/blue-whale.html
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Vivyx
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Super Kaizer Ghidorah
Jun 20 2013, 11:11 AM
Posted Image

Here's your winner!



Tyrannosaurus weighs up to 7 tons. But some exceed 9 tons
Spino is 10-12 tons. Max 14 tons.

Tyrannosaurus has a better bite and sharp foot claws sharper and longer than spino's, His head has lots of muscle too. Spino has a vulnerable area other than the neck, the spines!
I swear to god, if you are dinosaur, I would just do this:


http://www.youtube.com/watch?feature=player_detailpage&v=cHUHjIP2AuE



I mean, an animated film is a source?



Posted Image



And 9 ton T.rex, that is the equivalent of a 1 ton sausage compared to a 454 grams sausage.



How do you know that the T.rex's foot claws are sharper than the Spinosaurus' foot claws.
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Jinfengopteryx
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Thylacinus
Jul 7 2013, 06:09 AM
And 9 ton T.rex, that is the equivalent of a 1 ton sausage compared to a 454 grams sausage.
I believe I stated this like 3000 times (it got always ignored), but I will state it again:
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0026037
Quote:
 
We begin by outlining our results for models of the skeletons alone, which we expect to have the highest precision (adding flesh to the skeletons inevitably increases subjective errors).
9,5 t was the minimum model, which was based on the method explained in the quote. Now you see why the problem is something else (which was also explained like a thousand times).

P.S. Judging from the weight you gave to the sausages, it seems like you believe Sue to weigh 4 t.
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thesporerex
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here it is... THE battle of 2 of the most powerful and famous theropods of all time...
despite what fanboys might think(spinosaurus and t-rex have the most fanboys of all) this fight is closer than people might think, but if I had to put money on it I would vote for t-rex 50-59% of the time. I don't believe in the 20 ton spinosaurus estimate its biased as fuck but if t-rex gets ahold of its neck it the rex wins but if spinosaurus knock the rex over it wins(this is what dinosaur micheal said aswell which I agree with) I also doubt spinosaurus being 18 metres at max because I have not seen any evidence of it but spinosaurus is bigger regardless. I believe in 15-16 metre estimate
Edited by thesporerex, Jul 30 2013, 10:31 AM.
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Makaveli7
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At parity Tyrannosaurus takes it but at max sizes for both Spino takes it because of a huge size advantage. 60 feet and 12+ tons of giant carnivore is too much for Rex.
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Super Kaizer Ghidorah
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Black leopard
Jul 7 2013, 06:09 AM
Super Kaizer Ghidorah
Jun 20 2013, 11:11 AM
Posted Image

Here's your winner!



Tyrannosaurus weighs up to 7 tons. But some exceed 9 tons
Spino is 10-12 tons. Max 14 tons.

Tyrannosaurus has a better bite and sharp foot claws sharper and longer than spino's, His head has lots of muscle too. Spino has a vulnerable area other than the neck, the spines!
I swear to god, if you are dinosaur, I would just do this:


http://www.youtube.com/watch?feature=player_detailpage&v=cHUHjIP2AuE



I mean, an animated film is a source?



Posted Image



And 9 ton T.rex, that is the equivalent of a 1 ton sausage compared to a 454 grams sausage.



How do you know that the T.rex's foot claws are sharper than the Spinosaurus' foot claws.
http://www.edgeofexistence.org/edgeblog/?p=676
this source says it all. Scroll down until u find the tyrannosaurus foot claws picture
also what on earth are u talking about. Do I even know who on earth dinosaur is?
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Godzillasaurus
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Quote:
 
http://www.edgeofexistence.org/edgeblog/?p=676
this source says it all. Scroll down until u find the tyrannosaurus foot claws picture
also what on earth are u talking about. Do I even know who on earth dinosaur is?


Really dude? That article doesn't even mention spinosaurus, let alone claim how deadly the hind claws of large tyrannosaurids were. The hind claws of animals like allosaurus, tyrannosaurus, or spinosaurus weren't used as weapons. Instead, they were most likely used to pin down prey.

You know what, why am I even arguing with you? You are clearly that "dinosaur" guy who recently got banned. That or you are just another troll. Get off Carnivora and go back to Club Penguin!
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SpinoInWonderland
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Godzillasaurus
Aug 11 2013, 04:26 AM
Quote:
 
http://www.edgeofexistence.org/edgeblog/?p=676
this source says it all. Scroll down until u find the tyrannosaurus foot claws picture
also what on earth are u talking about. Do I even know who on earth dinosaur is?


Really dude? That article doesn't even mention spinosaurus, let alone claim how deadly the hind claws of large tyrannosaurids were. The hind claws of animals like allosaurus, tyrannosaurus, or spinosaurus weren't used as weapons. Instead, they were most likely used to pin down prey.

You know what, why am I even arguing with you? You are clearly that "dinosaur" guy who recently got banned. That or you are just another troll. Get off Carnivora and go back to Club Penguin!
Ignore function works wonders Godzillasaurus...
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Super Kaizer Ghidorah
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Godzillasaurus
Aug 11 2013, 04:26 AM
Quote:
 
http://www.edgeofexistence.org/edgeblog/?p=676
this source says it all. Scroll down until u find the tyrannosaurus foot claws picture
also what on earth are u talking about. Do I even know who on earth dinosaur is?


Really dude? That article doesn't even mention spinosaurus, let alone claim how deadly the hind claws of large tyrannosaurids were. The hind claws of animals like allosaurus, tyrannosaurus, or spinosaurus weren't used as weapons. Instead, they were most likely used to pin down prey.

You know what, why am I even arguing with you? You are clearly that "dinosaur" guy who recently got banned. That or you are just another troll. Get off Carnivora and go back to Club Penguin!
Alright dude keep it cool here. I dont know who the hell is dinosaur. Ur totally mistaken
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