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Giganotosaurus carolinii v Tyrannosaurus rex
Topic Started: Jan 31 2012, 05:48 PM (110,352 Views)
Taipan
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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.

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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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Prehistoric Cat
Jan 31 2012, 04:53 PM
Giganotosaurus VS Tyrannosaurus
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Taurus
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Bright Nights
Feb 4 2012, 04:02 AM
DarkGricer
Feb 2 2012, 10:50 AM
DinoLord
Feb 2 2012, 10:45 AM
So Giga's relatively small arms that were probably best suited for holding onto prey could twist T. rex's neck when used with its head? Giga couldn't possibly use his arms and head on T. rex at the same time. It's physically impossible.
Not entirely. If it rear up a bit and grabd T.rex's snout it could also grab the back of the head with it's jaws if posed correctly. Then it could use it's strenth to twist it, just twist it, ow!
As DinoLord pointed out, it would mean Giganotosaurus would be reverting to the old, scrapped "tripod" hypothesis that was shown to be inaccurate.

Stop trying to save your argument by twisting known facts about Dinosaur form and function.
Fully agreed with Bright Nights.
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DarkGricer
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Bright Nights
Feb 4 2012, 04:02 AM
DarkGricer
Feb 2 2012, 10:50 AM
DinoLord
Feb 2 2012, 10:45 AM
So Giga's relatively small arms that were probably best suited for holding onto prey could twist T. rex's neck when used with its head? Giga couldn't possibly use his arms and head on T. rex at the same time. It's physically impossible.
Not entirely. If it rear up a bit and grabd T.rex's snout it could also grab the back of the head with it's jaws if posed correctly. Then it could use it's strenth to twist it, just twist it, ow!
As DinoLord pointed out, it would mean Giganotosaurus would be reverting to the old, scrapped "tripod" hypothesis that was shown to be inaccurate.

Stop trying to save your argument by twisting known facts about Dinosaur form and function.
Ok. I might have been wrong about the arms, but the jaw thing is still possible. It wouldn't have to go in an unatural position to grab the head.

Conclusion: Your statements are BS. I didn't change its posture. I said something entirely possible.

BTW: IF it would go into the old posture, it would be to tall to reach the T.rex's head anyway.
Edited by DarkGricer, Feb 4 2012, 10:51 AM.
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Taurus
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1. It's phyically impossible for Giganotosaurus to twisting a Trex's neck through jaws. Giganotosaurus wasn't much taller than a Trex, just a slightly taller but NOT that much.

2. If Giganotosaurus use old tripod posture then it's fair for a Trex to use same posture too.
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DarkGricer
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Taurus
Feb 4 2012, 11:19 AM
1. It's phyically impossible for Giganotosaurus to twisting a Trex's neck through jaws. Giganotosaurus wasn't much taller than a Trex, just a slightly taller but NOT that much.

2. If Giganotosaurus use old tripod posture then it's fair for a Trex to use same posture too.
It is not impossible. Have you ever heard of rearing up? Besides. It doens't matter much in the end. There are many more ways for a GIganotosaurus to kill a T.rex. You have to make an entire discusion for 1 little thing, jees.
Edited by DarkGricer, Feb 4 2012, 11:36 AM.
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Taurus
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DarkGricer
Feb 4 2012, 11:35 AM
Taurus
Feb 4 2012, 11:19 AM
1. It's phyically impossible for Giganotosaurus to twisting a Trex's neck through jaws. Giganotosaurus wasn't much taller than a Trex, just a slightly taller but NOT that much.

2. If Giganotosaurus use old tripod posture then it's fair for a Trex to use same posture too.
It is not impossible. Have you ever heard of rearing up? Besides. It doens't matter much in the end. There are many more ways for a GIganotosaurus to kill a T.rex. You have to make an entire discusion for 1 little thing, jees.
Yes there are few ways for a Giganotosaurus to kill a Trex but twisting Trex's neck is not one of these ways. If Gigantosaurus rearing up then Trex will just simply rearing up and prevent Giga to bites on the skull and "twisting" its neck which it is physcially impossible. It's basically jaws v.s jaws match. As Bright Nights said, save yourself from the arguement of twisting the known facts of dinosaur form and function as it made you looks bad as usual.
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ShadowPredator
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Quit pickin on him torus, (al though that is true) the "scissor jaw" debate isn't as pointless as youguys might've said; Rexy wasnt just skin and bone with rock solid muscles, it has fat and Giga's teeth are made to cut through muscle and fat but not hang on. The only problem with it is how Giga is going to get to rexy's unprotected side
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DarkGricer
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Taurus
Feb 4 2012, 12:05 PM
DarkGricer
Feb 4 2012, 11:35 AM
Taurus
Feb 4 2012, 11:19 AM
1. It's phyically impossible for Giganotosaurus to twisting a Trex's neck through jaws. Giganotosaurus wasn't much taller than a Trex, just a slightly taller but NOT that much.

2. If Giganotosaurus use old tripod posture then it's fair for a Trex to use same posture too.
It is not impossible. Have you ever heard of rearing up? Besides. It doens't matter much in the end. There are many more ways for a GIganotosaurus to kill a T.rex. You have to make an entire discusion for 1 little thing, jees.
Yes there are few ways for a Giganotosaurus to kill a Trex but twisting Trex's neck is not one of these ways. If Gigantosaurus rearing up then Trex will just simply rearing up and prevent Giga to bites on the skull and "twisting" its neck which it is physcially impossible. It's basically jaws v.s jaws match. As Bright Nights said, save yourself from the arguement of twisting the known facts of dinosaur form and function as it made you looks bad as usual.
Then gues what. That would be an incredibly stupid idea of the Tyrant Lizard King. Giga could then quickly duck, charge forward and grab T.rex's neck before it has the time to react. Once Giga has the neck, the fight is over, the T.rex has no way of hurting it and its neck will be thorn up in seconds. Giga doesn't even have to hold on, it can just slice out 30% of the neck by pulling back. That's a deathblow.
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SameerPrehistorica
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Prehistoric Cat
Feb 1 2012, 02:25 AM
SameerPrehistorica
Feb 1 2012, 02:03 AM
DinosaurMichael
Jan 31 2012, 11:30 PM
Giganotosaurus is only slightly bigger. I favor T-Rex since it had a stronger bite, and was much more robust. Not to mention it was the most advanced big theropod.
I agree that.It was only slightly bigger than T.Rex. Eventhough the new estimates of T.Rex is 10 tonne.In that case T.Rex is slightly bigger.Whatever...... Giganotosarus - 40 % Tyrannosaurus Rex - 60 %
Giganotosaurus was 13 tons
That is over estimated.Giga is like 8 tonnes.The theropod which weighs over 10 tonnes is Spinosaurus.
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Megafelis Fatalis
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SameerPrehistorica
Feb 5 2012, 12:56 AM
Prehistoric Cat
Feb 1 2012, 02:25 AM
SameerPrehistorica
Feb 1 2012, 02:03 AM
DinosaurMichael
Jan 31 2012, 11:30 PM
Giganotosaurus is only slightly bigger. I favor T-Rex since it had a stronger bite, and was much more robust. Not to mention it was the most advanced big theropod.
I agree that.It was only slightly bigger than T.Rex. Eventhough the new estimates of T.Rex is 10 tonne.In that case T.Rex is slightly bigger.Whatever...... Giganotosarus - 40 % Tyrannosaurus Rex - 60 %
Giganotosaurus was 13 tons
That is over estimated.Giga is like 8 tonnes.The theropod which weighs over 10 tonnes is Spinosaurus.
Yes you are right.
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Anomonyous
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Taurus
Feb 4 2012, 11:19 AM
1. It's phyically impossible for Giganotosaurus to twisting a Trex's neck through jaws. Giganotosaurus wasn't much taller than a Trex, just a slightly taller but NOT that much.

2. If Giganotosaurus use old tripod posture then it's fair for a Trex to use same posture too.
Tyrannosaurus was taller than giganotosaurus. Its legs were longer.

Anyways, giganotosaurus possesses no advantage but mouth gape. I have no idea why this has not been accepted yet.
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Anomonyous
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DarkGricer
Feb 5 2012, 12:22 AM
Then gues what. That would be an incredibly stupid idea of the Tyrant Lizard King. Giga could then quickly duck, charge forward and grab T.rex's neck before it has the time to react. Once Giga has the neck, the fight is over, the T.rex has no way of hurting it and its neck will be thorn up in seconds. Giga doesn't even have to hold on, it can just slice out 30% of the neck by pulling back. That's a deathblow.
You're basing that on an unbacked assumption: That giganotosaurus is faster and more agile than tyrannosaurus, with quicker reflexes as well. But tell me, how quick and agile will a theropod that hunts juvenile sauropods be? Let's compare that to tyrannosaurus, which hunts dangerous prey and has binocular vision and larger leg & hip muscles.

How is it any easier for giganotosaurus to kill tyrannosaurus than for tyrannosaurus to kill giganotosaurus?
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DarkGricer
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Anomonyous
Feb 5 2012, 03:36 AM
DarkGricer
Feb 5 2012, 12:22 AM
Then gues what. That would be an incredibly stupid idea of the Tyrant Lizard King. Giga could then quickly duck, charge forward and grab T.rex's neck before it has the time to react. Once Giga has the neck, the fight is over, the T.rex has no way of hurting it and its neck will be thorn up in seconds. Giga doesn't even have to hold on, it can just slice out 30% of the neck by pulling back. That's a deathblow.
You're basing that on an unbacked assumption: That giganotosaurus is faster and more agile than tyrannosaurus, with quicker reflexes as well. But tell me, how quick and agile will a theropod that hunts juvenile sauropods be? Let's compare that to tyrannosaurus, which hunts dangerous prey and has binocular vision and larger leg & hip muscles.

How is it any easier for giganotosaurus to kill tyrannosaurus than for tyrannosaurus to kill giganotosaurus?
1: Its a Charcarodontosaurid. It hunts Sauropods, but not every single day! Look at Chased by Dinosaurs. It showed Giganotosaurus chasing after and killing an Iguanodont. + if you are trying to say young Sauropods are wimpy little wimps that can't do anything to a Predator like Giganotosaurus, then you need to get your head fixed. Everytime it would hunt Sauropods, a Giganotosaurus would risk being crushes, trampled, get its neck broken by a giant tail, ect, ect. These young could be more dangerous than a Triceratops, dependign on thier age. Oh, and did I tell you that they'd have to get past the friggin ADULTS to?!

2: Perhaps it could be the scizor jaws, who make every bit disableing and potentialy lethal. Imagin if it bit a leg. Wit so many of your leg muscles disabled, that leg would be pretty useless. It could also be the size advantage, grantign it strength, or it could be superior speed and agility. Oh, wait. Now that I think of it, its all of those things combined!
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7Alx
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Actually Giganotosaurus could run only at 10-20 mph. It wasn't even as fast as Tyrannosaurus.T.rex was also faster due arctometatarsal, which is in ornithomimosaurs, troodontids and oviraptorosaurs too. I know tyrannosaurs were in fact slower than smaller long-legged coelurosaurs, but they were sill faster than giant carnosaurs like Giganotosaurus.

Secondly, there are smaller sauropods like Limaysaurus living in the same place and time as Giganotosaurus. Of course there were probably ornitopods, but Giga would be ambush hunter, so great speed would be unnecessary.
Edited by 7Alx, Feb 5 2012, 06:14 AM.
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Taurus
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ShadowPredator
Feb 4 2012, 03:01 PM
Quit pickin on him torus, (al though that is true) the "scissor jaw" debate isn't as pointless as youguys might've said; Rexy wasnt just skin and bone with rock solid muscles, it has fat and Giga's teeth are made to cut through muscle and fat but not hang on. The only problem with it is how Giga is going to get to rexy's unprotected side
Or how Giga can protect himself from a Trex's powerful bite? Have you thought this before?

Anyways, if you are gonna back up Darkgricer, then why there are lot of posters disagreed with him? Sorry but someone have to correct Darkgricer's errors which isn't surprised.
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DarkGricer
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7Alx
Feb 5 2012, 04:53 AM
Actually Giganotosaurus could run only at 10-20 mph. It wasn't even as fast as Tyrannosaurus.T.rex was also faster due arctometatarsal, which is in ornithomimosaurs, troodontids and oviraptorosaurs too. I know tyrannosaurs were in fact slower than smaller long-legged coelurosaurs, but they were sill faster than giant carnosaurs like Giganotosaurus.

Secondly, there are smaller sauropods like Limaysaurus living in the same place and time as Giganotosaurus. Of course there were probably ornitopods, but Giga would be ambush hunter, so great speed would be unnecessary.
Then explain me why T.rex was an ambush hunter as well. rolleyes

@Taurus: Sure T.rex's bone crushign bite would be a force to be reckoned with, but the damage done by it pales in comparising to the huge slices of Giga's scicor jaws.

BTW: You should look at your own posts before saying anythign about mine, Mr.IKnowEverythingAndAnOpinionIsSomethingThatDoesNotExist.
Edited by DarkGricer, Feb 5 2012, 06:45 AM.
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