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| Giganotosaurus carolinii v Tyrannosaurus rex | |
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| Tweet Topic Started: Jan 31 2012, 05:48 PM (110,341 Views) | |
| Taipan | Jan 31 2012, 05:48 PM Post #1 |
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Giganotosaurus carolinii Giganotosaurus ("giant southern lizard"), was a carcharodontosaurid dinosaur that lived 93 to 89 million years ago during the Turonian stage of the Late Cretaceous period. It is one of the longest known terrestrial carnivores, bigger than Tyrannosaurus, but in length and weight, smaller than Spinosaurus. Although longer than T. rex, G. carolinii was lighter and had a much smaller braincase that was the size and shape of a banana. A well-developed olfactory region means it probably had a good sense of smell. Titanosaur fossils have been recovered near the remains of Giganotosaurus, leading to speculation that these carnivores may have preyed on the giant herbivores. Fossils of related carcharodontosaurid fossils grouped closely together may indicate pack hunting, a behavior that could possibly extend to Giganotosaurus itself. he holotype specimen's (MUCPv-Ch1) skeleton was about 70% complete and included parts of the skull, a lower jaw, pelvis, hindlimbs and most of the backbone. The premaxillae, jugals, quadratojugals, the back of the lower jaws and the forelimbs are missing. Various estimates find that it measured somewhere between 12.2 and 13 m (40 and 43 ft) in length, and between 6.5 and 13.3 tons in weight. A second, more fragmentary, specimen (MUCPv-95) has also been identified, found in 1987 by Jorge Calvo. It is only known from the front part of the left dentary which is 8% larger than the equivalent bone from the holotype. This largest Giganotosaurus specimen is estimated to represent an individual with a skull length of 195 cm (6.40 ft), compared to the holotype's estimated at 1.80 m (5.9 ft) skull, making it likely that Giganotosaurus had the largest skull of any known theropod. Giganotosaurus surpassed Tyrannosaurus in mass by at least half a ton (the upper size estimate for T. rex is 9.1 t). Additionally several single teeth, discovered from 1987 onwards, have been referred to the species. ![]() 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. 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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| Big G | Jan 18 2014, 04:45 AM Post #211 |
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Herbivore
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Now most of the users are agree that this is a 50/50. Me too. Giganotosaurus has a larger gape and a longer and taller body, T.rex a stronger bite and a heavier body. So, this is 50/50. |
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| Hatzegopteryx | Jan 18 2014, 04:53 AM Post #212 |
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Unicellular Organism
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each of their bites have disadvantages that are compensated by something else, the weaker bite is compnsated with a better gape |
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| Jinfengopteryx | Jan 18 2014, 05:34 AM Post #213 |
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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Yeah, there seems to be quite a consensus on that. Even broly thinks so now. |
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| Tyrannoceratospinosaurus Rex | Jan 18 2014, 06:23 PM Post #214 |
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Heterotrophic Organism
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That's strange. Never expected broly to say 50/50. |
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| ConvergentCaiman | Feb 24 2014, 06:17 PM Post #215 |
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Unicellular Organism
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The thing is, agility shouldn't be considered as a factor. Both tyrannosaurus and giganotosaurus have a lot of mass very far from their centre of gravity, meaning their rotational inertia (basically how the more mass is away from the centre of gravity, the harer it is to turn) makes it hard for them to turn, at least quickly. Anyways, I say Tyrannosaurus wins this one. It is smaller, but it is more heavily built and also stronger. |
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| The All-seeing Night | Feb 24 2014, 06:38 PM Post #216 |
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You are without honor
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If anyone here makes dinosaur fights with pivot, I know which one you'll pick.
Edited by The All-seeing Night, Feb 24 2014, 10:19 PM.
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| thesporerex | Feb 24 2014, 09:52 PM Post #217 |
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Kleptoparasite
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funny enough I have made this senario in pivot a while back but it sucks dick
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| Hatzegopteryx | Feb 24 2014, 10:06 PM Post #218 |
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Unicellular Organism
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I do, I am giving some less known dinosaurs the spotlight soon but I might do that some time. |
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| The All-seeing Night | Feb 24 2014, 10:20 PM Post #219 |
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You are without honor
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Giga better be victor, I'm sick of tyrannosaurus winning all the time!
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| Hatzegopteryx | Feb 24 2014, 10:51 PM Post #220 |
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Unicellular Organism
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Well, the same could go the other way around. ![]() I'll see what I can do. It shouldn't be a quick fight however, seeing as both can be equally as lethal to eachother. |
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| TheMechaBaryonyx789 | Feb 25 2014, 01:37 AM Post #221 |
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Herbivore
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I would say around 50/50, with perhaps a slight edge to Tyrannosaurus. According to Scott Hartman, Sue is 8.4 tons in weight while the larger Giganotosaurus specimen is 8.2 tons in weight: http://www.skeletaldrawing.com This is just a small size advantage, but it proves that Tyrannosaurus is more robust than Giganotosaurus despite being shorter in terms of length. Tyrannosaurus does have a stronger bite force, with a maximum potential bite force of ~6 tons, but Giganotosaurus' dentary is more efficient at slashing and tearing. |
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| TheMechaBaryonyx789 | Feb 25 2014, 01:37 AM Post #222 |
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Herbivore
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This is the actual link to that article: http://www.skeletaldrawing.com/home/mass-estimates-north-vs-south-redux772013 |
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| Hatzegopteryx | Feb 25 2014, 02:12 AM Post #223 |
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Unicellular Organism
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It isn't just the dentary, also the maxilla. Both parts have teeth attached to them (also the premaxilla). |
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| theropod | Feb 25 2014, 04:09 AM Post #224 |
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palaeontology, open source and survival enthusiast
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He may have meant "dentition". Anyway guys, don’t forget sue is the biggest of dozens of T. rex specimens. It’s about as represenatitive for its species as black beauty is... |
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| Hatzegopteryx | Feb 25 2014, 04:12 AM Post #225 |
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Unicellular Organism
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But then, he could have just said dentition, since the dentary is just one specific part of the mandible. |
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