| 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: |
| Tyrannosaurus rex v Ankylosaurus magniventris | |
|---|---|
| Tweet Topic Started: Jan 28 2012, 10:08 PM (48,657 Views) | |
| Taipan | Jan 28 2012, 10:08 PM Post #1 |
![]()
Administrator
![]()
|
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. ![]() Ankylosaurus magniventris Ankylosaurus is a genus of ankylosaurid dinosaur, containing one species, A. magniventris. Fossils of Ankylosaurus are found in geologic formations dating to the very end of the Cretaceous Period (about 66.5–65.5 Ma ago) in western North America. Although a complete skeleton has not been discovered and several other dinosaurs are represented by more extensive fossil material, Ankylosaurus is often considered the archetypal armored dinosaur. Other ankylosaurids shared its well-known features—the heavily-armored body and massive bony tail club—but Ankylosaurus was the largest known member of the family. In comparison with modern land animals the adult Ankylosaurus was very large. Some scientists have estimated a length of 9 meters (30 ft). Another reconstruction suggests a significantly smaller size, at 6.25 m (20.5 ft) long, up to 1.5 m (5 ft) wide and about 1.7 m (5.5 ft) high at the hip. Ankylosaurus may have weighed over 6,000 kilograms (13,000 lb), making it one of the heaviest armored dinosaurs yet discovered. The body shape was low-slung and quite wide. It was quadrupedal, with the hind limbs longer than the forelimbs. Although its feet are still unknown, comparisons with other ankylosaurids suggest Ankylosaurus probably had five toes on each foot. The skull was low and triangular in shape, wider than it was long. The largest known skull measures 64.5 centimeters (25 in) long and 74.5 cm (29 in) wide. ![]() ______________________________________________________________________________
Edited by Taipan, May 25 2018, 11:58 PM.
|
![]() |
|
| Replies: | |
|---|---|
| Deleted User | Jun 2 2014, 09:38 PM Post #151 |
|
Deleted User
|
Mismatch tyrannosaurus rex wins easyliy( thought they are very overrated ) |
|
|
| The Reptile | Jun 19 2014, 11:46 PM Post #152 |
![]()
Herbivore
![]() ![]() ![]() ![]() ![]() ![]()
|
Tyrannosaurus lacked the gape to successfully puncture the creature's actual carapace (whether or not it had crushing capabilities here is irrelevant for this piece of it, as if the creature could not even engulf a structure given its gape, it would not have nearly enough leverage to actually damage it). Could it damage and/or penetrate ankylosaur armor?- Definitely, with enough size. But it would probably be going for more slender regions such as the head, neck, and tail-base (all of which were still armored to an extent). Although many of you still are underestimating ankylosaurus' power and capabilities; it seems likely that ankylosaur armor and size evolved to cope with tyrannosaurid predation (given that ankylosaurs were most abundant during the later parts of the Cretaceous, although there were still smaller and lesser-known genera from the Jurassic and early parts of the Cretaceous), and going for the tail would be very risky. |
![]() |
|
| theropod | Jun 20 2014, 12:58 AM Post #153 |
|
palaeontology, open source and survival enthusiast
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
I don’t get what’s your point the reptile. |
![]() |
|
| The Reptile | Jun 24 2014, 01:34 AM Post #154 |
![]()
Herbivore
![]() ![]() ![]() ![]() ![]() ![]()
|
The point being that ankylosaurus, despite its obvious size disadvantage, is heavily underrated. Its armor and carapace were probably very strong in life |
![]() |
|
| Sleipnir | Oct 13 2014, 11:45 AM Post #155 |
|
Steed of the Deathless
![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Superpredator, I could not less agree. The only way a T. rex would win is by ambush! But consider this; in the movie Speckles the Tarbosaurus, a pink tyrannosaurus with one eye pushes a gigantic boulder 5-7 times his size off a cliff that just happens to land on the tail of an Ankylosaurus that the pink T. rex was just peering at. Curious, isn't it?
Edited by Sleipnir, Oct 13 2014, 11:47 AM.
|
![]() |
|
| Dilophosaurus | Oct 19 2014, 03:00 AM Post #156 |
|
Autotrophic Organism
![]() ![]() ![]() ![]()
|
While ankylosaurus had some impressive armor, and its tail would have been a most effective deterrent, if tyrannosaurus was intent on killing ankylosaurus it would likely be able to do so. Besides the obvious weight difference, tyrannosaurus's jaws were very adept at killing armored dinosaurs and it was quite intelligent by dinosaur standards, whereas ankylosaurus has one of the smallest brain-to-body ratios of any dinosaur. Ankylosaurus, similarly to other armored animals, likely survived by virtue of not being worth the time, risk and effort to bring down, rather than because it was likely to win in a fight. |
![]() |
|
| ansram | Oct 19 2014, 10:52 PM Post #157 |
|
Unicellular Organism
![]() ![]() ![]()
|
T-rex would be able to beat Anky more often than not. Anky is one of the dumbest dinos out there and all it knows is to keep swishing its tail. It has no other strategies. T-rex on the other hand was among the brainier dinos and would surely avoid the tail most of the time. I guess a bite to the head of Anky is all Rex needs to do, though it needs to be wary of the tail while doing this. If T-rex just crushes Anky with its superior weight, then also it would win as the armour wasn't going to come in handy in this situation. 80-20 for T-rex. |
![]() |
|
| Ausar | Oct 19 2014, 11:11 PM Post #158 |
|
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
An Ankylosaurus is not going to just simply (and stupidly) swing its tail around in a fight, it wasn't that stupid. It had to have had enough common sense to turn with the predator if the latter tried to outflank the former, otherwise it would never have lasted as long as it did. Incidentally, its short legs and low center of gravity will allow it to be able to turn easily and face the theropod. Maybe it might not win more often than not due to the sheer size disparity going against it (and if it didn't exist, I'd strongly favor Ankylosaurus), but just putting that out there. Edited by Ausar, Oct 20 2014, 02:53 AM.
|
![]() |
|
| Ceratodromeus | Oct 20 2014, 02:33 AM Post #159 |
|
Aspiring herpetologist
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Just like how T.rex was adapted to deal with armored prey, anky was adapted to deal with predators. millions of years of evolution is not gonna leave anky ill equipped to defend itself. imo, tyrannosaurus was the only predator in its environment that predated on anky, though it surely wasn't easy, 50/50 with a slight edge to Tyrannosaurus |
![]() |
|
| Dilophosaurus | Oct 20 2014, 03:47 AM Post #160 |
|
Autotrophic Organism
![]() ![]() ![]() ![]()
|
Ankylosaurus's only weapon is its tail. A tail that could break bones, yes, but I do not think it would have been enough. Even assuming ankylosaurus was agile enough to keep its tail at a good angle against tyrannosaurus, the tyrannosaurus could have just bit the tail off, which was certainly possible and would have deprived ankylosaurus of its only weapon. And if it couldn't turn fast enough, the tyrannosaurus could simply crush its skull or neck. No doubt it would not be pleasant to take down for tyrannosaurus, but in a fight to the death, it's hard to see ankylosaurus winning unless tyrannosaurus is monumentally stupid. Or unless it's a juvenile. |
![]() |
|
| Ausar | Oct 20 2014, 03:49 AM Post #161 |
|
Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Bite off a swinging clubbed-tail moving at high speeds? Have fun. |
![]() |
|
| Dilophosaurus | Oct 20 2014, 03:54 AM Post #162 |
|
Autotrophic Organism
![]() ![]() ![]() ![]()
|
It's physically impossible for the ankylosaurus to keep its tail moving at high-speed at all times. It can't change the direction or speed of its tail immediately, and so it has to be slow enough to bite during the start or end of a swing. The tyrannosaurus simply has to strike during that time. Edited by Dilophosaurus, Oct 20 2014, 03:55 AM.
|
![]() |
|
| Ceratodromeus | Oct 20 2014, 04:01 AM Post #163 |
|
Aspiring herpetologist
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
rex would have a broken jaw before it could 'bite off' anky's tail.. that's at the opposite end of the herbivore it wants to be. Tyrannosaurus is going to attack the head - seeing how low ankylosaurus is to the ground- it's not going to bother going for the legs. hypothetically, t.rex could bite the the base of tail and crush vertebrate, rendering the club useless, but it's certainly not biting it off. even then, the tyrannosaur would have to bite through thick armor, probably loosing a tooth or two in the process Edited by Ceratodromeus, Oct 20 2014, 04:30 AM.
|
![]() |
|
| Dilophosaurus | Oct 20 2014, 04:26 AM Post #164 |
|
Autotrophic Organism
![]() ![]() ![]() ![]()
|
![]() Morphology of the tail. As you can see, the vertebrae in the tail is not particularly thick. At least, we know tyrannosaurus has broken thicker bones than this just by biting it before. While the tail was slowed down just before or after a swing, or when it's winding up for another swing, tyrannosaurus could have bit the area with the fused vertebrate and broke or fractured it, rendering it either severed or useless. Not to mention that the tail could do no damage while it was in tyrannosaurus's mouth. As for losing teeth, well, theropods often did lose them while attack or feeding. Good thing they grow back, eh? Unless tyrannosaurus bit the knob of the tail while it was at full swing, I think biting the tail would have worked quite well for it. Edited by Dilophosaurus, Oct 20 2014, 04:28 AM.
|
![]() |
|
| Ceratodromeus | Oct 20 2014, 05:13 AM Post #165 |
|
Aspiring herpetologist
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
i did not speak on how thick the vertebrate were, rather the armor of anky is thick. i'm aware predators loose teeth when killing/feeding, i'm just covering all my bases here. however, i don't know how you think tyrannosaurus is going to 'catch' the tail club of ankylosaurus without recieving a broken jaw |
![]() |
|
| 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 |
2:24 AM Jul 14
|
Powered by ZetaBoards Premium · Privacy Policy


)










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

2:24 AM Jul 14