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| Carcharodontosaurus saharicus v Tyrannosaurus rex | |
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| Tweet Topic Started: Jun 8 2012, 05:34 PM (129,966 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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| Carcharodontosaurus | Jan 3 2015, 05:23 AM Post #901 |
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Unicellular Organism
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Tyrannosaurus had the bulk and sheer force but Carcharodontosaurus was crafty and was slightly bigger than Tyrannosaurus. It is proven that Tyrannosaurus had a bigger brain cavity which means it as smarter but Carcharodontosaurus's steak knife teeth COULD cause major blood loss meaning extreme injury or possibly death. It all matters on who gets the first bite in. I would say Carcharodontosaurus could barely even use his claws neither get time to use them. |
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| Teratophoneus | Jan 3 2015, 10:19 AM Post #902 |
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Herbivore
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We don't know if it was bigger than Tyrannosaurus. According to Naish and Holtz, it wasn't. |
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| Carcharodontosaurus | Jan 3 2015, 01:53 PM Post #903 |
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Unicellular Organism
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| Ceratodromeus | Jan 3 2015, 01:56 PM Post #904 |
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Aspiring herpetologist
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he was talking about body size, not the size of the brain. |
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| Carcharodontosaurus | Jan 3 2015, 02:09 PM Post #905 |
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Oh, well a lot of websites say that Carcharodontosaurus is slightly bigger than Tyrannosaurus. Not much of a size difference but only a few feet longer and taller. |
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| Teratophoneus | Jan 3 2015, 07:05 PM Post #906 |
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Herbivore
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Any reliable source has never stated that it was bigger, only comparable. Websites aren't really reliable sources. |
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| Carcharodontosaurus | Jan 4 2015, 04:00 AM Post #907 |
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Really, I've seen body comparisons, pictures, and read a lot of books stating that it is slightly bigger. Tyrannosaurus is max. 39-42 ft and Carcharodontosaurus is max. 42-44 ft. |
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| Ceratodromeus | Jan 4 2015, 04:08 AM Post #908 |
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Aspiring herpetologist
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size is discerned from weight, not length. |
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| Teratophoneus | Jan 4 2015, 07:23 AM Post #909 |
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Herbivore
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42 feet for T.rex is based on an old mount. The largest specimen is more like to 12.3-12.5 m. Where did you get those figures for Carcharodontosaurus? Any scientific paper has never given such numbers, and even the scientific papers' figures are miscited (12 m) or based on a flawed methodology (13.3 m). We can assume that it was approximately as big as Giganotosaurus, wich is roughly as big as Tyrannosaurus, but nothing much more than that. Also, size=weight. Carcharodontosaurus may have been longer, but it likely wasn't heavier. Edited by Teratophoneus, Jan 4 2015, 07:25 AM.
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| Carcharodontosaurus | Jan 5 2015, 03:26 AM Post #910 |
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Look what Taipan said about Carcharodntosaurus's size:( read the parentheses ) 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. So, it was longer! Edited by Carcharodontosaurus, Jan 5 2015, 03:26 AM.
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| theropod | Jan 5 2015, 04:03 AM Post #911 |
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palaeontology, open source and survival enthusiast
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Well, it was longer, but these profiles are mainly based on Wikipedia, so you shouldn’t trust them. |
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| Teratophoneus | Jan 5 2015, 04:57 AM Post #912 |
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Herbivore
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Like theropod correctly remarked, those profiles are copied from old Wikipedia article (the new one's much better). You cannot say that it was longer. It isn't a certain thing, it may have been as long or even shorter. It's better to say it LIKELY was longer. But lenght isn't as important as weight, wich seems to be equal here. |
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| theropod | Jan 5 2015, 07:42 AM Post #913 |
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palaeontology, open source and survival enthusiast
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It’s a pretty certain thing. the very lowest possible (and exceedingly unlikely) estimates for SGM DIN-1 are approximately equal to the lenght of FMNH PR 2081, The former is the larger in two, the latter the largest in 50+. |
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| Teratophoneus | Jan 5 2015, 08:24 AM Post #914 |
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Yes, but it's still a possibility. What if SMG-Din 1 was 'only' 12.2 m long (the lower bound)? What if SMG-Din 1 is the 'Sue' of Carcharodontosaurus? It's unlikely, but it's still a possibility. |
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| theropod | Jan 5 2015, 08:56 AM Post #915 |
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palaeontology, open source and survival enthusiast
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But should it be assumed? It’s also a possibility that it would suddenly disappear during a fight and reappear elsewhere, but does that mean we should assume it? It’s almost as likely that it’s the B-rex of Carcharodontosaurus, but we simply shouldn’t go with these kinds of extreme assumptions, rather use realistic assumptions. |
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