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| Giganotosaurus carolinii v Tyrannosaurus rex | |
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| Tweet Topic Started: Jan 31 2012, 05:48 PM (110,326 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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| Ausar | Feb 17 2016, 11:32 AM Post #436 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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Accuses people of favoritism. Thinks Giganotosaurus will win 80% of the time. Ironic situation is ironic. Edited by Ausar, Feb 17 2016, 11:36 AM.
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| Ceratodromeus | Feb 17 2016, 12:04 PM Post #437 |
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Aspiring herpetologist
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there's no need for name calling. Ausar, perhaps he means longer skull= longer reach. though imo this argument doesn't go very far |
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| DarkGricer | Feb 17 2016, 12:43 PM Post #438 |
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Omnivore
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Fanboy-ism has nothing to do with what they are saying. Both combatants are pretty much equal in size as far as we can tell. And even if they were not, it's unlikely that either contestant would have a win rate above 60%. Believe me, Giganotosaurus is my all time favorite dinosaur, so it's not like I'm trying to downplay it. |
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| LordMax2222 | Feb 18 2016, 02:03 AM Post #439 |
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Autotrophic Organism
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Blanco and Mazzetta (2001) estimated that for Giganotosaurus a growing imbalance when increasing its velocity would pose an upper limit of 14 metres per second (50 km/h; 31 mph) to its running speed, after which minimal stability would have been lost.- https://en.wikipedia.org/wiki/Giganotosaurus Tyrannosaurus rex could have reached speeds of 18 miles per hour (29 km/h).- www.livescience.com/9519-rex-outrun-humans.html Not the best sources, but first ones that popped up. It also has a longer neck and skull http://www.mrugala.net/Nature/Animaux/Dinosaures/Giganotosaurus%20&%20Tyrannosaurus%20(02).jpg This is from you forums. Wouldn't have made a huge difference but still enough to get a first bite in most of the time. Snow leopard, you said gigonatosaurus would beat spino 95% of the time go fanboy yourself. Sorry had to replace something else that might have gotten me banned. Edited by LordMax2222, Feb 18 2016, 02:04 AM.
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| Ausar | Feb 18 2016, 06:03 AM Post #440 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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Sorry, but there's no way Tyrannosaurus, a theropod with actual cursorial adaptations, was slower than Giganotosaurus, a theropod with a lack thereof (and by 13 miles per hour at that!). And you know, if I didn't know any better, I would have thought you cherry-picked your sources. link link link link I'd also like to state that I think it's HIGHLY unlikely that Giganotosaurus could move at speeds of up to 31 miles per hour. Somewhere between the speed of Tyrannosaurus and an equivalent sized elephant (though closer to its fellow theropod) is about right. Particularly fast, subadult Asian elephant bulls have been reliably clocked at up to 6.8 meters per second (a little over 15mph), and so a 6,000 kilogram elephant in the size range of an adult Tyrannosaurus or Giganotosaurus would be a lot slower than that. But, as I said before, not that speed really matters in a situation like this. As for the longer neck/skull, that's an outdated image. This comparison is more accurate. If there really is a range discrepancy, it's negligible. Edited by Ausar, Dec 20 2017, 08:47 AM.
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| LordMax2222 | Feb 19 2016, 04:13 AM Post #441 |
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Autotrophic Organism
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https://en.wikipedia.org/wiki/Giganotosaurus http://www.livescience.com/24642-giganotosaurus.html http://www.dailymail.co.uk/sciencetech/article-3120106/Usain-Bolt-outrun-T-Rex-yes-velociraptors-Jurassic-World-feathers-10-facts-didn-t-know-dinosaurs.html http://www.livescience.com/9519-rex-outrun-humans.html https://en.wikipedia.org/wiki/Cursorial elephants seem to have more cursorial adaptations that any large theropods. http://dinoanimals.pl/wp-content/uploads/2013/02/Giganotosaurus-vs-T.-rex-vs-spinosaurus.jpg would still have a longer skull. |
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| Spartan | Feb 19 2016, 04:22 AM Post #442 |
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Kleptoparasite
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What's posting links to outdated pictures and general wikipedia pages supposed to tell us?
Edited by Spartan, Feb 19 2016, 05:01 AM.
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| LordMax2222 | Feb 19 2016, 05:04 AM Post #443 |
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Autotrophic Organism
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The speed of giganotosaurus And how is this outdated? It's later that what other people have given |
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| Spartan | Feb 19 2016, 05:22 AM Post #444 |
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Kleptoparasite
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It says Sue is 4m at the hips, 12.8m long and weighed 5.4-6.8t. All of this is wrong. And why do people bring running speed even up? It's a fight, not a race. |
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| Ausar | Feb 19 2016, 05:55 AM Post #445 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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Oh? Let's look to the literature to see how well supported your claim is. link
Elephants are graviportal, which means that everything about their appendicular anatomy is designed for weight bearing. As a trade-off, they are lack a lot of fundamental traits associated with fast running. It's clear from the literature I cited above that even the giant theropods are more adapted for running than elephants are. So...you're clearly talking out of your ass. As I said before, there is no way a cursorial giant theropod will be slower than a (seemingly) subcursorial giant theropod. Don't pretend the scholarly sources I've cited haven't proven you wrong by posting random links. As for the relevance of speed in this topic and the size comparison you posted: I and/or Spartan already addressed those. Edited by Ausar, Dec 20 2017, 08:49 AM.
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| LordMax2222 | Feb 19 2016, 05:56 AM Post #446 |
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Autotrophic Organism
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An average trex was that large, and yes we are of topic I know tyrannosaurs were faster but cursorial adaptations mostly mean relatively smaller feet, less digits, more bendable spine basically more horse like Also I believe I have effectively slaughtered every other dinosaur conflict thread So somthing here deserves a killstreak and I am voting for that somthing Edited by LordMax2222, Feb 19 2016, 06:05 AM.
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| Spartan | Feb 19 2016, 06:03 AM Post #447 |
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Kleptoparasite
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The average T. rex wasn't 4m tall and 12.8m long nor did it weigh below 6t. Your chart also said it was Sue, not some random average T. rex. |
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| LordMax2222 | Feb 19 2016, 06:06 AM Post #448 |
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Autotrophic Organism
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Weighed about 6 tons Lets get back on the topic train |
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| Ausar | Feb 19 2016, 07:33 AM Post #449 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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Then why did we have to get into a discussion about which animal was faster? They also include more elongated and gracile distal limb segments, increased muscle mass in the proximal limb elements, and metatarsals that are better for energy storage, all of which were in the possession of tyrannosaurids. As for the ones you mentioned:
What do you mean by that? So, are you saying that you're betting your cash on Giganotosaurus because it "deserves a killstreak" in the topics of this subforum? Edited by Ausar, Aug 29 2016, 01:22 AM.
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| LordMax2222 | Feb 19 2016, 07:39 AM Post #450 |
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Autotrophic Organism
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I mean that I know trex was faster than an elephant and 90% of the time I reply to anything here nobody ever comments on it again. Also would make sense if you'd played CoD. |
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