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| Carcharodontosaurus saharicus v Tyrannosaurus rex | |
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| Tweet Topic Started: Jun 8 2012, 05:34 PM (129,989 Views) | |
| Taipan | Jun 8 2012, 05:34 PM Post #1 |
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Carcharodontosaurus saharicus This huge meat eater was 45 feet long (5 feet longer than T-rex) and weighed 8 tons, making it one of the largest carnivores that ever walked the earth. This African carnosaur had a gigantic 5’4" long skull and enormous jaws with 8" long serrated teeth. It walked on two legs, had a massive tail, bulky body and short arms ending in three-fingered hands with sharp claws. Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15 metric tons. Its long, muscular legs, and fossilized trackways indicate that it could run about 20 miles per hour, though there is some controversy as to whether it actually did, a forward fall would have been deadly to Carcharodontosaurus, due to the inability of its small arms to brace the animal when it landed. Carcharodontosaurus was a carnivore, with enormous jaws and long, serrated teeth up to eight inches long. ![]() 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. ![]() _________________________________________________________________________________
Edited by Taipan, Apr 24 2015, 10:18 PM.
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| theropod | Jan 26 2013, 07:54 AM Post #556 | ||||||
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palaeontology, open source and survival enthusiast
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exactly, but that doesn't really answer my question. of course, all this is uncertain, mnsm might have been a particularly large or small individual. still, in a sample size of 1 this one should be considered average. It is statistically unlikely for it to be eqivalent to the largest T. rex specimen. |
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| MightyMaus | Jan 26 2013, 07:58 AM Post #557 | ||||||
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Autotrophic Organism
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Sorry, my inner grammar Nazi compels me to let you know that Komodo is spelled with a K. ![]() I do think the bite of a Tyrannosaurus would kill faster than a slicing bite. But the difference would only be a matter of minutes. If both animals got a neck bite in...both would die. Edited by MightyMaus, Jan 26 2013, 07:58 AM.
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| MysteryMeat | Jan 26 2013, 08:02 AM Post #558 | ||||||
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Herbivore
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there's no "average" when the sample size is one. It is unlikely to be an extreme, but that's true for any random single sample. One individual doesn't represent any population well, when it's the only one you know. It probably better represents Spinosaurus from Morocco, but we don't know how well it represents the genus in general. |
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| Grey | Jan 26 2013, 08:10 AM Post #559 | ||||||
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Kleptoparasite
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Carcharodontosaurids teeth have been studied and this is a matter of fact that they are not made at puncturing hard bones. The case of the bite marks on a Spinosaurus spine just shows...a bite mark. The teeth were not made to slice it and even so, they would most likely crack. To leave marks does not make you a bonecrusher ! When you have time, try to check the old docs about Carcharodontosaurus and Giganotosaurus when they were firstly found. The describers made numerous explanations of their most likely killing method. Bite and wait, just like the classic, gruesome tactic of the white shark upon seals. The lamnid waits a few minutes before achieve its victim. Carcharodontosaurids have been compared to it. Victims of Tyrannosaurus were also reported shocked during the process of the attack, only with massive internal damages, including bones. This kind of bite is made to kill quickly. The biting style of Carcha is a more economic, safer method. Not less lethal but not as fast in killing a large prey. Edited by Grey, Jan 26 2013, 08:12 AM.
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| Godzillasaurus | Jan 26 2013, 08:14 AM Post #560 | ||||||
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Reptile King
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Carcharodontosaurus had sharper, thinner teeth than any tyrannosaurid. Tyrannosaurus had a strong bite force and good weaponry, sure, but carcharodontosaurus simply had better, sharper weapons. Tyrannosaurus probably killed by using its bite force in unison with its teeth to create deadly puncture wounds, while carcharodontosaurus probably killed with intense ripping and blood loss. |
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| Grey | Jan 26 2013, 08:22 AM Post #561 | ||||||
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Kleptoparasite
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There's no better weaponry, there is the quick killing and the economic killing. The killing of armored, agressive preys, and the killing of large, massively bodied preys. |
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| Godzillasaurus | Jan 26 2013, 08:25 AM Post #562 | ||||||
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Reptile King
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Tyrannosaurus has a heavier build and more powerful bite force and jaw structure, but the teeth alone are what I am referring to. The teeth of most carnosaurs are simply sharper and thinner than those of tyrannosaurs. |
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| Grey | Jan 26 2013, 08:36 AM Post #563 | ||||||
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Kleptoparasite
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I did not claim the contrary ! It does not mean that tyrannosaurids were less better armed, than carnosaurs, don't forget they form a hyper-specialized lineage of predators, at the pinacle of the theropod evolution. My main point is that they are more direct, brutal killers than carcharodontosaurids, hence, have at least slightly ("slightly" because Carcha remains one hell of an opponent) to kill the carcharodontosaurid at first than vice-versa. One analogy with sharks, at parity, Carcharocles/Carcharodon, in their killing style, are comparable to Tyrannosaurus/Carcharodontosaurus. |
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| Godzillasaurus | Jan 26 2013, 09:18 AM Post #564 | ||||||
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Reptile King
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I see what you are saying. I agree that tyrannosaurs were probably more brutal. But I still believe that the teeth of carcharodontosaurus were deadlier as a whole. |
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| SpinoInWonderland | Jan 26 2013, 01:28 PM Post #565 | ||||||
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The madness has come back...
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That was a supermassive sauropod, shrunken to Tyrannosaurus size...the square-cube law allows the sauropod the victory...if the sauropod was naturally as large as Tyrannosaurus, it would lose... |
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| SpinoInWonderland | Jan 26 2013, 01:34 PM Post #566 | ||||||
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The madness has come back...
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Well, I think for myself instead of just going with the mainstream... And they do, they are the ones with baseless arguments like: "Tyrannosaurus has a septic bite" "Tyrannosaurus is the king" "Sauropods were dumb as rocks" "Sauropods are defenseless mountains of meat" They have to be put down, they shall not spread their bias to others! Be a voice of reason, not a stereotype follower... |
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| SpinoInWonderland | Jan 26 2013, 01:36 PM Post #567 | ||||||
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The madness has come back...
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It is also the smallest confirmed adult of Spinosaurus aegyptiacus... |
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| MightyMaus | Jan 26 2013, 03:23 PM Post #568 | ||||||
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Autotrophic Organism
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Heck, it could be a smallish adult for all we know! But I won't make that leap of faith, instead I will say it is an average spino. |
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| Jinfengopteryx | Jan 26 2013, 06:57 PM Post #569 | ||||||
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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Good comparision! I agree BTW, when taking these sizes.
But that doesn't mean all meat slicers kill that fast. For example sharks need more time to kill their victim. You see that in the shark/seal encounters. The seals sometimes survive, even when getting bitten.
I think nobody on this forum believes that BS. So you don't have to reply to T-rex supporters on this forum in the same way as you reply to T-rex supporters on YT. So please just forget the youtube guys. |
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| theropod | Jan 26 2013, 08:10 PM Post #570 | ||||||
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palaeontology, open source and survival enthusiast
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I'm still pretty sure when bitten to the neck that'd be rexys death sentence, and it would't be able to fight back. I haven't really seen incidents where a gws got a good bite on a seal without killing it immeadiately. Also, whether the teeth of carcharodontosaurs could withstand bone well remains to be studied, everything is possible as here are so few remains. The anatomy definitely does not debunk that possibility, and I do not remember any tests done. And in any case, the way carcharocles jaws functioned is still more similar to carnosaurs than to tyrannosaurs. The point is, it sliced bones, it didn't crush them, and it had extremely sharp teeth. I don't see why people think it would ake a difference whether your whole neck is sliced up with severe tendons ans muscles, with you bleeding to death within a minute, or your spine is crushed. To me, that wouldn't make a difference, it would be impossible to fight back in either case. PS: sorry, I noticed the komodo dragon-thing myself, but I was too lazy to correct it. Edited by theropod, Jan 26 2013, 08:12 PM.
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