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| Spinosaurus aegyptiacus v Tyrannosaurus rex | |
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| Tweet Topic Started: Jan 7 2012, 02:16 AM (459,101 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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| Spinodontosaurus | Nov 7 2015, 07:25 AM Post #4201 |
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Herbivore
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@Dunkleosteus Gigas Spinosaurus did not live alongside Ouranosaurus. I told you this before. Even then, Ouranosaurus is not that large, it's femur is only 81 cm long which is about 80% the size of Parasaurolophus, it would be barely 6.5 meters long. |
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| Tyrant | Nov 7 2015, 07:26 AM Post #4202 |
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Omnivore
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Evolution tends to grant animal's the most effective tools for the tasks they are adapted to. So yeah, if one set of jaws is designed to kill big animals and the other isn't, its unlikely that the latter will preform worse if tried to do the former's job and vice versa.
No s hit, a taser is designed for NON lethal force you dumb mong. |
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| Thalassophoneus | Nov 7 2015, 07:33 AM Post #4203 |
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Pelagic Killer
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Tyrant
OK, then.
My swearwording goodness. Look what I psoted above! I didn't say "chunks of meat" to reduce them.
And meanwhile you compare its neck to this of a crocodile. Is it like a crocodile or not? Also, according to Wikipedia off course, it was resistant to vertical bending but not to lateral bending, which means that it could definitely bite strongly, but needed some more caution. You have to accept that the possibility of Spinosaurus witching between aquatic and terrestrial hunting isn't excluded at all.
False gharials have been reported to eat humans. And their jaws look thinner than those of a Spinosauru's jaws.
Yeah. Why? Is it bad? Basically he found the source for me without intending to. A Forum is considered a source too, right? Carnivora is a source based on other sources. Wikipedia is also a source based on other sources. The majority of sources on the internet are based on some original sources and we cannot truly debunk those original sources unless we make our original sources.
I would like you to link me to your source. Also, is this adaptation found on false gharials, which have been reported to eat humans in extremely rare cases?
Ehm... ehm! Read all the above! Oh! What a surprise! They look like evidence!
Ow! Tyrant is sad cause I'm do not believe T-Rex was a much better hunter than anyone else! Edited by Thalassophoneus, Nov 7 2015, 07:37 AM.
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| Tyrant | Nov 7 2015, 07:46 AM Post #4204 |
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Omnivore
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I saw but again, I hope you realize that what you said actually does sound degrading to them unlike me.
I never directly compared their necks. I was just pointing out pscivores tend to lack the power used to hunt big game and this likely applied to spinosaurus.
I already said I accepted the notion that spinosaurus could hunt terrestial animals but it would be a lot less effective.
Humans are lot smaller than false gharials so that's still not very impressive and I said it would be a better example not a perfect one.
Not all sources are equal. For example, some people use Kent Hovind as a source of information.
I already told you it but whatevs. https://www.youtube.com/watch?v=SrNQVnZ_X0M ^A link to the documentary, probably not the exact part. You'll find it somewhere. Edit: That was the right part and now that I rewatched it, Richard Dawkins doesn't make any mention of necks just jaws. Still, it's likely the pscivores like gharials and spinosaurus didn't need comparatively powerful neck muscles since their typical prey was so much smaller.
Evidence of me being a fanboy you stupid twat. I'm not talking about those crappy wikipedia sources you keep using.
More like crap. Edited by Tyrant, Nov 7 2015, 07:53 AM.
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| FishFossil | Nov 7 2015, 07:52 AM Post #4205 |
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Herbivore
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(siiiiiiiiiighh..................) please give up on the Wikipedia thing. It lends nothing to your argument. Also, I find it funny that you're labeling Tyrant a fanboy. He's doing a better job of defending Spinosaurus than you are, by using facts, and accurate comparisons, which is what you should do when stating an opinion. |
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| Spartan | Nov 7 2015, 07:53 AM Post #4206 |
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Kleptoparasite
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And Tyrannosaurus' weaponry is far better for killing large animals. Nobody can seriously doubt that. |
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| Thalassophoneus | Nov 7 2015, 08:03 AM Post #4207 |
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Pelagic Killer
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You also said piscivores tend to have a faster moving neck. Am I wrong?
"No, Dunkleosteus Gigas. You aren't wrong."
I find "a lot" an exaggeration. Spinosaurus was still a dinosaur.
At the end of 2008, a 4-m female false gharial attacked and ate a fisherman in central Kalimantan; his remains were found in the gharial's stomach.[13] This was the first verified fatal human attack by a false gharial.[13] However, by 2012, at least two more verified fatal attacks on humans by false gharial had occurred indicating perhaps an increase of human-false gharial conflict possibly correlated to the decline of habitat, habitat quality and natural prey numbers.[14] And false gharials have skinnier jaws than Spinosaurus.
Those people exist too.
You call them crappy just because you do not agree. They are all professional sources. They aren't the website of the Cuban Communist Party or something. Do I spot fanboy anger? This is circular reasoning. I have been trying to explain to you since lots of posts ago that Spinosaurus was capable of terrestrial hunting. Here is a source about the bite force of Spinosaurus. http://carnivoraforum.com/topic/9537513/1/ Edited by Thalassophoneus, Nov 7 2015, 08:07 AM.
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| Ausar | Nov 7 2015, 08:08 AM Post #4208 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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It being a dinosaur doesn't mean squat in regards to how adept it was at hunting terrestrial prey. It's as if you didn't even read Tyrant's response. |
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| Thalassophoneus | Nov 7 2015, 08:10 AM Post #4209 |
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Pelagic Killer
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Simple Physics: We have F1➜ and F2➜. The ➜ is because it's a force that goes in a directon. It must be as strong, as both forces are the same. If F2➜ is higher, the fish will fall. F1 is the minimum Biteforce of Spino. F2 is the weight of Onchopristis X Gravitation(10N/kg). F1➜=F2➜.(The point that Fanboys can't understand)We take 2500 kg for Onchopristis. F1=2500kg x 10kg/N. We can remove the 2 kg's, so we get 25000N➜2,5t. The Fanboys don't understand that the fish will fall, if the biteforce is lower. This is a detailed explaination why.(F2➜ goes to the down. If it's stronger, it's obvious)What we have learned after this post➜Fanboys are immune to Physics. Thank you Jinfengopteryx! I'm not good at such physics! I'm in the first grade of Lykeio and we are now learning about acceleration! |
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| Spartan | Nov 7 2015, 08:10 AM Post #4210 |
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Kleptoparasite
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Jesus Christ, no sane person doubts that Spinosaurus could hunt terrestrial prey. But here it has to fight a Tyrannosaurus rex of 6-9t which is far better armed and hunts some of the most impressive terrestrial prey there is.
Here you're showing again that you have no clue. What has Spinosaurus being a dinosaur to do with its ability to hunt terrestrial prey? A penguin is also a dinosaur, so it could certainly hunt it some deer of buffalo if it runs out of fish, right? |
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| Thalassophoneus | Nov 7 2015, 08:12 AM Post #4211 |
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Pelagic Killer
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I assume that if a false gharial could do this to a human then a Spinosaurus could do this to an Ouranosaurus. Conclusion: Spinosaurus COULD hunt dinosaurs. Boom! The fact that Tyrannosaurus was much better armed is STILL not proven. My Virgin Mary! A penguin is much smaller than a deer or buffalo! Off cpurse it couldn't hunt a deer or buffalo! Are you guys stalking me? Edited by Thalassophoneus, Nov 7 2015, 08:15 AM.
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| Spartan | Nov 7 2015, 08:17 AM Post #4212 |
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Kleptoparasite
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So you're basically saying Spinosaurus' jaws are better adapted to fighting and killing similar sized dinosaurs than the jaws of T. rex which is specialized in exactly doing this?
Edited by Spartan, Nov 7 2015, 08:18 AM.
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| Thalassophoneus | Nov 7 2015, 08:19 AM Post #4213 |
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Pelagic Killer
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No. For God's sake, no. I don't know if you are aware of what I'm trying to prove here. I'm not necessarily trying to prove that Spinosaurus wins. I'm just trying to say that Spinosaurus could win and I'm not letting this possibility to be excluded. |
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| Ausar | Nov 7 2015, 08:22 AM Post #4214 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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HUZZAH! Except no one said it was impossible, it's just that it wasn't particularly well-adapted for it. Likewise, given how Ouranosaurus isn't really so huge, especially compared to Spinosaurus, it's still not particularly impressive. Edited by Ausar, Nov 7 2015, 08:23 AM.
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| Spartan | Nov 7 2015, 08:23 AM Post #4215 |
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Kleptoparasite
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You don't have to make one nonsensical claim after another to do so. I don't think many people believe this to be a mismatch. |
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