
Rex Fan 684
CompsognathusMember0 XPSep-18-2013 9:00 PMEven still, Gregory Erikson conducted studies down in Florida pertaining to Tyrannosaurus' bite force. Based on the bite mark evidence, he concluded, minimally, T-rex had a bite force of 6,800 psi. These bite however were not made at full force. Therefore, based off of studies on alligators and the estimated muscle mass of Tyrannosaurus, he concluded that Tyrannosaurus was capable of biting down with over 18,000 psi.
Alligator Skull
[img]http://www.boneclones.com/images/bc-129-lg.jpg[/img]
(The alligators used in the study were about 10 ft long and 450 lbs. They bit down with about 2,500 psi and the highest recorded for an alligator is about 3,000 psi. This can be seen in the documentary Mammals vs Dinos).
Alligators have skulls that are more robust than false gharials and crocs. They also have higher bite forces on the average.
[img]http://www.azdrybones.com/images/SaltWaterCroc.jpg[/img]
(Crocodile)
[img]http://www.valleyanatomical.com/catalog/images/R%20S499%20FALSE%20GAVIAL%20SKULL.%200002.jpg[/img]
(False Gharial)
[img]https://lh4.googleusercontent.com/-H2BoZ-YUohQ/T-y0D0G8VoI/AAAAAAAAAXg/Bh8wLNkGlm8/s302/Spinosaurus-falsegharialSkullDiagram.jpg[/img]
(Spino skull compared to False Gharial)
[img]http://www.amnh.org/var/ezflow_site/storage/images/media/amnh/images/permanent-exhibitions/fossil-halls/hall-of-saurischian-dinosaurs2/tyrannosaurus-rex/150313-1-eng-US/tyrannosaurus-rex_dynamic_lead_slide.jpg[/img]
(Tyrannosaurus skull)
Just figured since DinoFights did Spino I'd do Rex ;)
"Men like me don't start the wars. We just die in them. We've always died in them, and we always will. We don't expect any praise for it, no parades. No one knows our names."
―Alpha-98

Spix Macaw Zack
CompsognathusMember0 XPOct-23-2013 4:56 PMA Spinosaurus Tooth/Teeth we're hollow and brittle, meaning they couldn't grasp and hold something for long without breaking. A Spinosaurus also had a long snout/mouth which mean't it couldn't hold up a lot of pressure. A Spinosaurus hands we're faced inward and very close to each other, they would have to unnaturally bend sideways to even hit something. A Spinosaurus may have eaten fish but that doesn't make it smart, It didn't have to hunt Ankylosaurus or Triceratops on a daily basis so it didn't require a lot of intelligence.
Tyrannosaurus Rex had teeth that we're the size of bananas and weren't hollow meaning that they wouldn't break easy, maybe lose though if struggle lasted.A Tyrannosaurus Rex also had Bacteria filled in it's mouth similar to a Komodo Dragon. A Tyrannosaurus Rex had a small mouth/snout but it was focused with a lot of muscles meaning that it had a considerable bite force. Hands don't really matter for Rexe's besides maybe grasping giant prey. A Rex usually hunted the so called Duck Billed Dinosaurs, but on rare occasions had to hunt Ankylosaurus and Triceratops, even fighting these animals most likely ended 50/50 with the Rex or Trike dying, since it required to hunt such dangerous prey, it had to develop a lot of intelligence, Most people say T.Rex, Raptor and then Troodon we're the most intelligence Dinos, probably we're.
Now to the fight,
If you guy's so kindly look back into the Spino vs Rex video, you see in the beginning of the fight the T.Rex put's his massive chompers with banana teeth, bacteria and thousands of pounds of bite force into the Neck of the Spino, that's instantly death for it, If you see the Plane hitting the Spino also, it hit the spine which would of immediately either weakened the Spino greatly or killed it, it did neither. Anyway, the Spinosaurus had the T.Rex neck in his mouth for a few seconds to long, it would have been hard to keep it in his mouth do to not a lot of pressure built to withstand in the mouth and break it's teeth. You also see the T.Rex manhandle the Spino into a tree, also hitting it's Spine.
Now that I proved the Rex would of won, Let me also put in that, People who say that Rex wasn't a Super Predator and was a scavenger, It takes quite a lot of food to keep up that body weight and size for the Rex, Scavenging wouldn't be able to suffice the Rex to keep it that size, meaning it's a Super/Apex Predator.

Deltadromeus
CompsognathusMember0 XPOct-23-2013 5:52 PMPapa Rex. You didn't prove anything. And this discussion, and all other discussion like this, are now dead. The only time T. rex vs Spino is now allowed is FBR. We all have our own thoughts it doesn't mean you or me is right, but we just don't agree.

Rex Fan 684
CompsognathusMember0 XPOct-23-2013 6:27 PMLet's not come back to these older discussions please :)
If you wish to talk about the outcome between a T-rex and a Spino in a fight, you should use the personal messages ;)
"Men like me don't start the wars. We just die in them. We've always died in them, and we always will. We don't expect any praise for it, no parades. No one knows our names."
―Alpha-98

JurassicFanatic
CompsognathusMember0 XPOct-24-2013 3:44 PMSpinosaurus would totaley win. As it is taller, it had longer legs. If it had longer legs, then it's faster. Also, Spinosaurus was pretty agile. Because of the spine, it's entire body was encased in muscle. It could twist it's entire body very quickly, like an eel. Spinos also had big, clawed arms.
Remind me to thank John for a lovely weekend.
-Ian Malcom-

Lord Vader
Tyrannosaurus RexMember6270 XPOct-24-2013 4:15 PM*facepalm*
Rex vs Spino is dead, that has been stated countless times. If you want to see out opinions, refer to previous discussions. If you're going say something, say its your opinion. Otherwise it just sounds like, "this is what I think, so this is what it is".
Thanks for stating your opinion on Rex, it's very helpful when people give their opinion on both in these thing. I'm not going to say anything, because everyone knows my opinions, and you can too by simply looking at previous discussions.
BTW, Welcome to scified, please enjoy the forums.
Jack of all trades. Master of none

JurassicFanatic
CompsognathusMember0 XPOct-24-2013 7:33 PMHey, Happy9097,
I started a discussion about T-rex and Velociraptor. Waiting for it to be accepted. Could you comment on it when it's up?
Remind me to thank John for a lovely weekend.
-Ian Malcom-

Nano-Rex3
CompsognathusMember0 XPNov-25-2013 8:40 PMIn my oppinion t-rex would definetly win.

Godzillasaurus
CompsognathusMember0 XPNov-28-2013 7:48 PMSpinosaurus at its max (roughly 56 feet in length and around 12 tons) would win. Although it was a piscivorous animal, that does not mean that its jaws were weak at all. They were, in fact, really strong and quite resistant to both lateral and dorsal forces; they were very dense, especically compared to the jaws of carnosaurs. At length parity, however, tyrannosaurus wins for obvious reasons.

Deltadromeus
CompsognathusMember0 XPNov-28-2013 10:15 PMGodzillasaurus, me, Rex Fan, and Mrhappy have said time an time again, Rex vs Spino is dead. Sizes are so unknown for Spino, that we can't say what it really was in weight. Also, only part of a jaw has been found. Not much to go by on bite force.

Godzillasaurus
CompsognathusMember0 XPNov-29-2013 8:44 AMI have been here (at Jurassic World) less than a day... I am not going to go through every single thread to see what you guys had to say. If you ask why I have over 50 posts, then I should tell you that most of those are from the Godzilla forum.
Spinosaurus had way more powerful and heavily-built jaws than people make them out to be. You see, its thin rostrum was actually quite dense and robust in the region posterior to the specialized cleft, especially compared to allosauroid jaws; they were actually quite robust despite being thin. This is an adaptation for resistance to stress exerted by the massive fish that made up a large part of its diet; spinosaurids needed to have very strong jaws to withstand such amazing amounts of pressure because they evolved to grip. Bite force is somewhat unknown (although some estimates point to 2-3 tons of force), but I can tell you now that spinosaurus did not have weak jaws the least bit in the realm of overall robusticity, even if its bite force was subtle.
@Spix Macaw Jack, you are misinformed. Spinosaurus teeth were hollow, conical (cone shaped), and unserrated, but they were most certainly NOT brittle and were in fact quite sturdy and heavily-structured. Spinosaurus\\\' jaws and teeth were designed for gripping powerful aquatic animals, so both needed to be very strong. The conical shape of spinosaurine teeth were perfectly-built for piercing and gripping, yet they were still thick and were more than capable of withstanding decent amounts of pressure.
Tyrannosaurus teeth were built like serrated spikes. This does not necessarily mean they were more resistant to lateral forces than the teeth of spinosaurus, as spinosaurus\' dentition itself was also very strong and thick and was designed to retain a firm grip on large aquatic animals without breaking. Tyrannosaurid teeth, on the other hand, were designed for crushing vertically and not gripping. The same goes for the jaws, which were very heavily-built and thick (both dorsally and laterally).
Man, the inaccuracies on this forum are insane...

Rex Fan 684
CompsognathusMember0 XPNov-29-2013 5:37 PMTyrannosaurus Bite Force- 3-9 tons psi
Spinosaurus Bite Force- 2-4 tons psi
Weight(the determining factor when it comes to size for animals) is heavily debated between scientists and everyday people.
And Godzillasaurus, it's not inaccuracies. It's a difference of opinions. Once you call someone flat out wrong, you lose nearly all credibility. End of story.
"Men like me don't start the wars. We just die in them. We've always died in them, and we always will. We don't expect any praise for it, no parades. No one knows our names."
―Alpha-98

Lord Vader
Tyrannosaurus RexMember6270 XPNov-29-2013 6:39 PMSometimes when I see these Jurassic World noobs post these opinions without saying they're an opinion, and say others are wrong just pisses me off. I'm having trouble not stating what im thinking instead of being nice about it.
Oh well, I'm not an ass (it has nothing to do with the fact I'm Canadian), so I'll just nicely go out a shoot something tomorrow.
Jack of all trades. Master of none

Rex Fan 684
CompsognathusMember0 XPNov-29-2013 7:18 PMIt's ok MrHappy, I'm with ya.
"Men like me don't start the wars. We just die in them. We've always died in them, and we always will. We don't expect any praise for it, no parades. No one knows our names."
―Alpha-98

Sci-Fi King25
AllosaurusMember4297 XPDec-13-2013 8:14 PMIt depends, like in a lake or river ariea, definatley Spinosaurus. In a forest or plains area, probably Tyrannosaurus. Either way, I would sit down and wathc the battle because I'm done with this topic. Focus on other dino vs. dino. Happy 3rd annual Day of the Dinosaur!
“Banana oil.”- George Takei, Gigantis: The Fire Monster

BurningGodzilla1995
CompsognathusMember0 XPDec-27-2013 11:16 AMYa know I go with the spinosaurus considering he is the biggest theropod and has a substaintial amount of speed, muscle, and claw (considering he can use his arms).....he might not have good bite strength but his endurance and speed could probably outlast a t-Rex...

DinosaurGodzillaFan1
CompsognathusMember0 XPDec-28-2013 7:05 AMThe Jurassic Park 3 Rex was the kid from the previous movie. Tyrannosaurus and Spinosaurus are my favorite dinos after all.

UCMP 118742
CompsognathusMember0 XPJan-12-2014 11:23 AMFirst of all, i want to say that the bite force of Spinosaurus was anything but pathetic, it was miles away from the bite force of a T.Rex, but it was not something to mess around with, now to the task at hand, i would say that the T.Rex would win about 60-70% of the time
Keep in mind that many people have died for their beliefs; it's actually quite common. The real courage is in living and suffering for what you believe in. -Brom-

Killadj2012
CompsognathusMember0 XPJan-26-2014 11:26 AMIm going with Trex do to its strength and bite force even with those tiny arms he was a dino to be feared of.
If I could be anything I would be a Trex.
Â

gigan72
CompsognathusMember0 XPFeb-13-2014 6:33 PMTyrannosaurus Rex, for reasons already said. I have nothing against the spinosaurus, but I dont think he would win.

Primal King
CompsognathusMember0 XPApr-02-2014 8:08 PMTyrannosaurus rex takes this 65-70% of the time for me. That thing was probably the most advanced predator ever. It had the greatest bite force of all time, one of the best senses of smell, binocular vision, and was intelligent to boot. Also, exactly a year since this was posted! Happy anniversary!
"If you can't see it... It's already too late."
-Jurassic Apocalypse (by Paden)

Jezza
CompsognathusMember1 XPApr-03-2014 12:09 AMspino
Youre fat, and I'm not sugarcoating it cause you'd probably eat that too.

brego
CompsognathusMember81 XPJul-08-2014 11:44 PMlarge Carnivores rarely fight as it is a waste of time, energy and of course life... Carnivores cant afford to get hurt as even a small injury can lead to death by starvation. They usually front up to each other, have on round and the weaker backs off.
Anyhow, if they were to fight I'd have to say that if Rex got a bite hold on Spinos neck like in film 3.... Bye Bye Spino...

x_paden_x
CompsognathusMember0 XPJul-09-2014 2:17 PMLooking back at this now..
I'm rather confused how this got stickied.
Life cannot be contained, it breaks walls, crashes through barriers sometimes painfully, but uh... Life uh, finds a way

wardragon
CompsognathusMember0 XPSep-01-2014 12:53 PMspinosaurus would win, t-rex due to current estimates weighs 5-7 tons, spinosaurus weighed 8-9 tons plus spinosaurs has experiance fighting other super predators (carcharodontosaurus) which is a dinosaur that is as big if not bigger than t-rex and spinosaurus has arms
