Welcome Guest [Log In] [Register]
Welcome to Carnivora. We hope you enjoy your visit.


You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile and voting in polls. Registration is simple, fast, and completely free.


Join our community!


If you're already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
Spinosaurus aegyptiacus v Tyrannosaurus rex
Topic Started: Jan 7 2012, 02:16 AM (459,282 Views)
Wolf Eagle
Member Avatar
M E G A P H Y S E T E R
[ *  *  *  *  *  * ]
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.

Posted Image

Spinosaurus aegyptiacus
Spinosaurus is a genus of theropod dinosaur which lived in what is now North Africa, from the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago. Spinosaurus may be the largest of all known carnivorous dinosaurs, even larger than Tyrannosaurus and Giganotosaurus. Estimates published in 2005 and 2007 suggest that it was 12.6 to 18 metres (41 to 59 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weight. The skull of Spinosaurus was long and narrow like that of a modern crocodilian. Spinosaurus is thought to have eaten fish; evidence suggests that it lived both on land and in water like a modern crocodilian. The distinctive spines of Spinosaurus, which were long extensions of the vertebrae, grew to at least 1.65 meters (5.4 ft) long and were likely to have had skin connecting them, forming a sail-like structure, although some authors have suggested that the spines were covered in fat and formed a hump. Multiple functions have been put forward for this structure, including thermoregulation and display. Dal Sasso et al. (2005) assumed that Spinosaurus and Suchomimus had the same body proportions in relation to their skull lengths, and thereby calculated that Spinosaurus was 16 to 18 meters (52 to 59 ft) in length and 7 to 9 tonnes (7.7 to 9.9 short tons) in weight. The Dal Sasso et al. estimates were criticized because the skull length estimate was uncertain, and (assuming that body mass increases as the cube of body length) scaling Suchomimus which was 11 meters (36 ft) long and 3.8 tonnes (4.2 short tons) in mass to the range of estimated lengths of Spinosaurus would produce an estimated body mass of 11.7 to 16.7 tonnes (12.9 to 18.4 short tons).

Posted Image
Edited by Taipan, Apr 24 2015, 10:10 PM.
Offline Profile Quote Post Goto Top
 
Replies:
SpinoInWonderland
The madness has come back...
[ *  *  *  *  *  *  *  * ]
Asaurus
Jan 17 2013, 10:13 AM
Godzillaman
Jan 17 2013, 08:13 AM
mega t.rex the magnificent
Jan 17 2013, 02:31 AM
brolyeuphyfusion
Jan 16 2013, 11:36 PM
mega t.rex the magnificent
Jan 16 2013, 02:38 PM
Correct. That's why tyrannosaurus has tiny arms to balance the head
Actually, the tail, not the arms, balances the head
But little arms help balance as well. If tyrannosaurus had large king Kong arms, he would eventually fall forward everytime he makes a step. Large arms would put too much weight on the cranial area.
But what relevance does the size of the arms of tyrannosaurus have in this match up? Unlike dinosaurs such as allosaurus, they weren't as useful as weapons or grappling tools.
If T.rex was close enough, it might be able to grab Spino with its arms and grasp on. And, contrary to popular belief, those arms were far from weak, both arms were shown to be able to lift 400 lbs.
Still pathetic compared to Spinosaurus though...
Offline Profile Quote Post Goto Top
 
Godzillasaurus
Reptile King
[ *  *  *  *  *  * ]
Asaurus
Jan 17 2013, 10:13 AM
Godzillaman
Jan 17 2013, 08:13 AM
mega t.rex the magnificent
Jan 17 2013, 02:31 AM
brolyeuphyfusion
Jan 16 2013, 11:36 PM
mega t.rex the magnificent
Jan 16 2013, 02:38 PM
Correct. That's why tyrannosaurus has tiny arms to balance the head
Actually, the tail, not the arms, balances the head
But little arms help balance as well. If tyrannosaurus had large king Kong arms, he would eventually fall forward everytime he makes a step. Large arms would put too much weight on the cranial area.
But what relevance does the size of the arms of tyrannosaurus have in this match up? Unlike dinosaurs such as allosaurus, they weren't as useful as weapons or grappling tools.
If T.rex was close enough, it might be able to grab Spino with its arms and grasp on. And, contrary to popular belief, those arms were far from weak, both arms were shown to be able to lift 400 lbs.
I did hear somewhere that the arms of tyrannosaurus were much stronger than even human arms, but they are nothing compared to those of spinosaurus. And how would the tyrannosaurus even be able to get a good grip? Those small arms could possibly be used, but they wouldn't do much.
Offline Profile Quote Post Goto Top
 
SpinoInWonderland
The madness has come back...
[ *  *  *  *  *  *  *  * ]
Godzillaman
Jan 18 2013, 12:10 AM
Asaurus
Jan 17 2013, 10:13 AM
Godzillaman
Jan 17 2013, 08:13 AM
mega t.rex the magnificent
Jan 17 2013, 02:31 AM
brolyeuphyfusion
Jan 16 2013, 11:36 PM
mega t.rex the magnificent
Jan 16 2013, 02:38 PM
Correct. That's why tyrannosaurus has tiny arms to balance the head
Actually, the tail, not the arms, balances the head
But little arms help balance as well. If tyrannosaurus had large king Kong arms, he would eventually fall forward everytime he makes a step. Large arms would put too much weight on the cranial area.
But what relevance does the size of the arms of tyrannosaurus have in this match up? Unlike dinosaurs such as allosaurus, they weren't as useful as weapons or grappling tools.
If T.rex was close enough, it might be able to grab Spino with its arms and grasp on. And, contrary to popular belief, those arms were far from weak, both arms were shown to be able to lift 400 lbs.
I did hear somewhere that the arms of tyrannosaurus were much stronger than even human arms, but they are nothing compared to those of spinosaurus. And how would the tyrannosaurus even be able to get a good grip? Those small arms could possibly be used, but they wouldn't do much.
The only way Tyrannosaurus can use it's arms is if it can jump on Spinosaurus' back :D
Offline Profile Quote Post Goto Top
 
SpinoInWonderland
The madness has come back...
[ *  *  *  *  *  *  *  * ]
Spinosaurus kills Tyrannosaurus in front of andrei nandi to make that moron shut up.
Offline Profile Quote Post Goto Top
 
Shaochilong
Member Avatar
Herbivore
[ *  *  *  * ]
Tyrannosaurus using its arms? Err...no. It's pretty common knowledge that Tyrannosaurus' arms were too short to reach the mouth, and compared to those of other (non-tyrannosaur) theropods, very weakly muscled.
Offline Profile Quote Post Goto Top
 
theropod
Member Avatar
palaeontology, open source and survival enthusiast
[ *  *  *  *  *  *  *  * ]
still strong, but too short and weak to be a real factor. It simply won´t be able to reach its opponent in the first place, and Even being able to lift 100kg is nothing compared to the forces that would be freed in such a fight. Don´t forget many other theropods might not have very long or flexible arms, but still far longer, more massive, with larger mani and unguals. Tyrannosaurs didn´t reduce their arms that much in order for them to be effective weapons, but because they relied on different weapons...
Offline Profile Quote Post Goto Top
 
Arovinrac
Member Avatar
Herbivore
[ *  *  *  * ]
Regarding the Tyrannosaur arms, this is just a theory I have thought of.
In the late cretaceous dominant apex theropods such as Tyrannosaurs and Abeliosaurs all had tiny arms, could this be because arms were becoming less useful and more of a burden than an asset and there primary weapon their skull was much more effective, so therefore their arms became much smaller.
Also if the dinosaurs had not been extinct is it possible that large theropods would eventually lose their arms altogether.
Is this a reasonable theory, or have I misunderstood something?
Edited by Arovinrac, Jan 18 2013, 09:09 AM.
Offline Profile Quote Post Goto Top
 
Fragillimus335
Omnivore
[ *  *  *  *  * ]
08pateldan
Jan 18 2013, 09:07 AM
Regarding the Tyrannosaur arms, this is just a theory I have thought of.
In the late cretaceous dominant apex theropods such as Tyrannosaurs and Abeliosaurs all had tiny arms, could this be because arms were becoming less useful and more of a burden than an asset and there primary weapon their skull was much more effective, so therefore their arms became much smaller.
Also if the dinosaurs had not been extinct is it possible that large theropods would eventually lose their arms altogether.
Is this a reasonable theory, or have I misunderstood something?
Yep, that is pretty reasonable!
Offline Profile Quote Post Goto Top
 
Ausar
Member Avatar
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
[ *  *  *  *  *  *  *  * ]
Fragillimus335
Jan 17 2013, 11:42 AM
And Spinosaurus could probably lift 3-4 times that.
Yes, but just pointing that out.
Offline Profile Quote Post Goto Top
 
Ausar
Member Avatar
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
[ *  *  *  *  *  *  *  * ]
Godzillaman
Jan 18 2013, 12:10 AM
Asaurus
Jan 17 2013, 10:13 AM
Godzillaman
Jan 17 2013, 08:13 AM
mega t.rex the magnificent
Jan 17 2013, 02:31 AM
brolyeuphyfusion
Jan 16 2013, 11:36 PM
mega t.rex the magnificent
Jan 16 2013, 02:38 PM
Correct. That's why tyrannosaurus has tiny arms to balance the head
Actually, the tail, not the arms, balances the head
But little arms help balance as well. If tyrannosaurus had large king Kong arms, he would eventually fall forward everytime he makes a step. Large arms would put too much weight on the cranial area.
But what relevance does the size of the arms of tyrannosaurus have in this match up? Unlike dinosaurs such as allosaurus, they weren't as useful as weapons or grappling tools.
If T.rex was close enough, it might be able to grab Spino with its arms and grasp on. And, contrary to popular belief, those arms were far from weak, both arms were shown to be able to lift 400 lbs.
I did hear somewhere that the arms of tyrannosaurus were much stronger than even human arms, but they are nothing compared to those of spinosaurus. And how would the tyrannosaurus even be able to get a good grip? Those small arms could possibly be used, but they wouldn't do much.
Again, get extremely close (probably from the rear) and MAYBE you can get somewhat of a good grip. I'm not trying to support T.rex, but it could probably happen. But yes, those arms are nothing compared to other theropods.
Edited by Ausar, Jan 18 2013, 10:39 AM.
Offline Profile Quote Post Goto Top
 
Godzillasaurus
Reptile King
[ *  *  *  *  *  * ]
Asaurus
Jan 18 2013, 10:37 AM
Godzillaman
Jan 18 2013, 12:10 AM
Asaurus
Jan 17 2013, 10:13 AM
Godzillaman
Jan 17 2013, 08:13 AM
mega t.rex the magnificent
Jan 17 2013, 02:31 AM
brolyeuphyfusion
Jan 16 2013, 11:36 PM
mega t.rex the magnificent
Jan 16 2013, 02:38 PM
Correct. That's why tyrannosaurus has tiny arms to balance the head
Actually, the tail, not the arms, balances the head
But little arms help balance as well. If tyrannosaurus had large king Kong arms, he would eventually fall forward everytime he makes a step. Large arms would put too much weight on the cranial area.
But what relevance does the size of the arms of tyrannosaurus have in this match up? Unlike dinosaurs such as allosaurus, they weren't as useful as weapons or grappling tools.
If T.rex was close enough, it might be able to grab Spino with its arms and grasp on. And, contrary to popular belief, those arms were far from weak, both arms were shown to be able to lift 400 lbs.
I did hear somewhere that the arms of tyrannosaurus were much stronger than even human arms, but they are nothing compared to those of spinosaurus. And how would the tyrannosaurus even be able to get a good grip? Those small arms could possibly be used, but they wouldn't do much.
Again, get extremely close (probably from the rear) and MAYBE you can get somewhat of a good grip. I'm not trying to support T.rex, but it could probably happen. But yes, those arms are nothing compared to other theropods.
Well tyrannosaurus COULD have used them as grappling hooks, but probably not on a regular basis. The arms simply were not designed for such jobs, that is why tyrannosaurs mainly used their heads and jaws in combat.
Offline Profile Quote Post Goto Top
 
Ausar
Member Avatar
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
[ *  *  *  *  *  *  *  * ]
Godzillaman
Jan 18 2013, 11:00 AM
Asaurus
Jan 18 2013, 10:37 AM
Godzillaman
Jan 18 2013, 12:10 AM
Asaurus
Jan 17 2013, 10:13 AM
Godzillaman
Jan 17 2013, 08:13 AM
mega t.rex the magnificent
Jan 17 2013, 02:31 AM
brolyeuphyfusion
Jan 16 2013, 11:36 PM
mega t.rex the magnificent
Jan 16 2013, 02:38 PM
Correct. That's why tyrannosaurus has tiny arms to balance the head
Actually, the tail, not the arms, balances the head
But little arms help balance as well. If tyrannosaurus had large king Kong arms, he would eventually fall forward everytime he makes a step. Large arms would put too much weight on the cranial area.
But what relevance does the size of the arms of tyrannosaurus have in this match up? Unlike dinosaurs such as allosaurus, they weren't as useful as weapons or grappling tools.
If T.rex was close enough, it might be able to grab Spino with its arms and grasp on. And, contrary to popular belief, those arms were far from weak, both arms were shown to be able to lift 400 lbs.
I did hear somewhere that the arms of tyrannosaurus were much stronger than even human arms, but they are nothing compared to those of spinosaurus. And how would the tyrannosaurus even be able to get a good grip? Those small arms could possibly be used, but they wouldn't do much.
Again, get extremely close (probably from the rear) and MAYBE you can get somewhat of a good grip. I'm not trying to support T.rex, but it could probably happen. But yes, those arms are nothing compared to other theropods.
Well tyrannosaurus COULD have used them as grappling hooks, but probably not on a regular basis. The arms simply were not designed for such jobs, that is why tyrannosaurs mainly used their heads and jaws in combat.
Fair enough.
Offline Profile Quote Post Goto Top
 
Jinfengopteryx
Member Avatar
Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
[ *  *  *  *  *  *  *  * ]
Wow, you guys managed to fill the page 98 because of dinosaur. Anyway, I guess I agree with DinoMike.
Offline Profile Quote Post Goto Top
 
Deleted User
Deleted User

Such the mis match for the spinosaurus it wins without injury in seconds
Quote Post Goto Top
 
Fragillimus335
Omnivore
[ *  *  *  *  * ]
Spino King
Jan 19 2013, 03:52 AM
Such the mis match for the spinosaurus it wins without injury in seconds
Finally our very own Spino troll! Now team Spino has a fighting chance!
Offline Profile Quote Post Goto Top
 
2 users reading this topic (2 Guests and 0 Anonymous)
Go to Next Page
« Previous Topic · Dinosauria Interspecific Conflict · Next Topic »
Add Reply

Find this theme on Forum2Forum.net & ZNR exclusively.