| 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: |
| Spinosaurus aegyptiacus v Tyrannosaurus rex | |
|---|---|
| Tweet Topic Started: Jan 7 2012, 02:16 AM (459,282 Views) | |
| Wolf Eagle | Jan 7 2012, 02:16 AM Post #1 |
![]()
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. ![]() 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).
Edited by Taipan, Apr 24 2015, 10:10 PM.
|
![]() |
|
| Replies: | |
|---|---|
| SpinoInWonderland | Jan 17 2013, 11:47 AM Post #1486 |
|
The madness has come back...
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Still pathetic compared to Spinosaurus though... |
![]() |
|
| Godzillasaurus | Jan 18 2013, 12:10 AM Post #1487 |
|
Reptile King
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
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. |
![]() |
|
| SpinoInWonderland | Jan 18 2013, 12:24 AM Post #1488 |
|
The madness has come back...
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
The only way Tyrannosaurus can use it's arms is if it can jump on Spinosaurus' back
|
![]() |
|
| SpinoInWonderland | Jan 18 2013, 02:10 AM Post #1489 |
|
The madness has come back...
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Spinosaurus kills Tyrannosaurus in front of andrei nandi to make that moron shut up. |
![]() |
|
| Shaochilong | Jan 18 2013, 04:29 AM Post #1490 |
![]()
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. |
![]() |
|
| theropod | Jan 18 2013, 05:31 AM Post #1491 |
|
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... |
![]() |
|
| Arovinrac | Jan 18 2013, 09:07 AM Post #1492 |
|
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.
|
![]() |
|
| Fragillimus335 | Jan 18 2013, 10:26 AM Post #1493 |
|
Omnivore
![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Yep, that is pretty reasonable! |
![]() |
|
| Ausar | Jan 18 2013, 10:35 AM Post #1494 |
|
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Yes, but just pointing that out. |
![]() |
|
| Ausar | Jan 18 2013, 10:37 AM Post #1495 |
|
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
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.
|
![]() |
|
| Godzillasaurus | Jan 18 2013, 11:00 AM Post #1496 |
|
Reptile King
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
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. |
![]() |
|
| Ausar | Jan 18 2013, 11:02 AM Post #1497 |
|
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Fair enough. |
![]() |
|
| Jinfengopteryx | Jan 19 2013, 02:41 AM Post #1498 |
![]()
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. |
![]() |
|
| Deleted User | Jan 19 2013, 03:52 AM Post #1499 |
|
Deleted User
|
Such the mis match for the spinosaurus it wins without injury in seconds |
|
|
| Fragillimus335 | Jan 19 2013, 06:33 AM Post #1500 |
|
Omnivore
![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Finally our very own Spino troll! Now team Spino has a fighting chance! |
![]() |
|
| 2 users reading this topic (2 Guests and 0 Anonymous) | |
| Go to Next Page | |
| « Previous Topic · Dinosauria Interspecific Conflict · Next Topic » |
| Theme: Dinosauria light | Track Topic · E-mail Topic |
2:23 AM Jul 14
|
Powered by ZetaBoards Premium · Privacy Policy


)



![]](http://z4.ifrm.com/static/1/pip_r.png)






2:23 AM Jul 14