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| Giganotosaurus carolinii v Tyrannosaurus rex | |
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| Tweet Topic Started: Jan 31 2012, 05:48 PM (110,320 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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| Black Panther | Jul 29 2016, 06:15 AM Post #526 |
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Omnivore
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@caratodromeus, I think he was talking to me when he said "stop outing words in my mouth man". But either way you are correct. When you wrestle something to the ground you come in close proximity to it. In which the giga will take the opportunity and bite repeatedly. @ hypernova, the giganotosaurus probably bit and Ya led it's head back to tear off huge chunks of flesh. @charcardon, they are small but most likely slot more powerful and have three claws. If the giga is able to get a hold of the Rex's neck or body it would deal a lot of damage, a lot more then the tyrant King could with it's two clawed arms. Edited by Black Panther, Jul 29 2016, 06:19 AM.
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| HyperNova | Jul 29 2016, 06:21 AM Post #527 |
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Wild Animals Enthusiast
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I look at their skull and t-rex seems to have the more damaging bite, both have serrated teeth, t-rex has longer teeth, t-rex has the stronger bite force etc. Is there anything giganatosaurus has over the t-rex in the ''bite department''. |
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| Black Panther | Jul 29 2016, 06:27 AM Post #528 |
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Omnivore
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Giganotosaurus has teeth that are long, blade like, and serrated. A single bite could do incredible damage. Tear through tendons, cut through arteries, slice through muscules, tissues and fiber, cause massive bloodloss and shock. And most of t.rex's tooth length is root. So in terms of slicing cutting and tearing the giganotosaurs jaws far exceed the tyrannosaur's. |
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| HyperNova | Jul 29 2016, 06:34 AM Post #529 |
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Wild Animals Enthusiast
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@Black Panther
The same cannot be said for the t-rex since he also has serrated teeth? Edited by HyperNova, Jul 29 2016, 06:35 AM.
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| Black Panther | Jul 29 2016, 06:38 AM Post #530 |
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Omnivore
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Yes and no. Of course it can slice, it has serrated teeth so it can actually eat something by tearing of pieces. But look at there teeth. One has dentition like a railroad spike and the other has dentition like a steak knife, which do you think cuts Better? |
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| Ausar | Jul 29 2016, 06:41 AM Post #531 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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Tyrannosaurus had serrated teeth, but given how the serrated edges of the teeth were far more obtuse than those of a typical predatory dinosaur, the cutting ability would have been reduced. I think it may be possible for Tyrannosaurus' serrations to be able to contribute to creating soft tissue damage with sufficient force, but it's clear that a carnosaur like Giganotosaurus would be able to draw its serrated tooth edges through soft tissue significantly more easily. Giganotosaurus also had somewhat of a wider gape. Edited by Ausar, Jul 29 2016, 06:42 AM.
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| HyperNova | Jul 29 2016, 06:43 AM Post #532 |
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Wild Animals Enthusiast
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So t-rex used their this feature (serrated teeth) for eating while giganotosaurus used this feature more for hunting and tearing through the flesh of live prey? |
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| Black Panther | Jul 29 2016, 06:49 AM Post #533 |
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Omnivore
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Of course it used it for hunting. They both did, it's just that giganotosaurus had much better teeth desinged for tearing. |
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| HyperNova | Jul 29 2016, 07:30 AM Post #534 |
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Wild Animals Enthusiast
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A few posts ago, I talked about ''mouth grappling'' and it's clear that the t-rex was superior in that category, but I was wondering if giganatausaure possess this ability. His skull don't really look design for this. When he was hunting, do you guy think he tried to hold on struggling prey and control them with his jaws or he only bite and pull out for tearing flesh like I suggested earlier? |
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| Black Panther | Jul 29 2016, 07:42 AM Post #535 |
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Omnivore
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Not really. It's jaws might not be very adapted to gripping due to its blade like teeth that would cut through too easily. which do you think is easier to do, hang onto something with a knife? Or hang onto something with a spike? |
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| HyperNova | Jul 29 2016, 07:56 AM Post #536 |
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Wild Animals Enthusiast
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I think you misunderstood my question, I was wondering if giganatosaurus was able to ''grapple'' with his mouth. Was he able to hold on struggling preys and control them with his jaw? His teeth look a bite more prone to breakage, his skull doesn't seems to be able to handle much bending stress etc... |
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| Black Panther | Jul 29 2016, 08:02 AM Post #537 |
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Omnivore
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I didn't misunderstand you. I awnswerd it. And just cause it was not adapted to break bone dosent mean it couldn't. Look at sharks, they bite through bone occasionaly and normaly don't loose them unless the bones are to big. It dosent matter anyways since( to my understanding) giganotosaurus's skull was not adapted for shaking or any of that kind of tension.
Edited by Black Panther, Jul 29 2016, 08:03 AM.
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| HyperNova | Jul 29 2016, 08:14 AM Post #538 |
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Wild Animals Enthusiast
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So comparing the bite of a giganatosaurus and t-rex will be like comparing the bite of a crocodile and the bite of shark in some way? |
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| Black Panther | Jul 29 2016, 08:22 AM Post #539 |
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Omnivore
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Yes, in a way. Due to there preferred killing methods and differentiating tooth design. |
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| LeonardosHeir | Jul 29 2016, 08:42 AM Post #540 |
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Herbivore
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I do think the three claws can still be a factor here. |
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