T-rex/Spinosaurus confront

I think Spino seems to just be more agile and "athletic" I guess you could say and would just be quicker than T Rex. I really think he would win b/c he's also got size on his side. I think he would be able to bully the T Rex around. None of what any of us say really matters though b/c none of us know for sure and VERY sadly we never can or will.

@ Spino186 T.Rex was smaller than Spino in terms of length and height, and it was probably slower, but T.Rex had a 6 000 pound bite force, and was built for fighting dinosaurs such as triceratops and ankylosaurus, while Spino used it's arms for fishing. Spino is crocodilian like in terms of skull design (long jaws and nostril placement) so that enforces the opinion (I said opinion, not fact) that Spino was a fish eater. For all we know, the muscles for opening the mouth could be incredibly weak like in crocodilians. In a race, Spino would win hands down, in a swimming competition, Spino would win every time, in jungle fighting, where Spino's size is a disadvantage, T.Rex would win 9 times out of 10. Spino's sail would be a disadvantage though because it is fused to the spine (hence the name "Spine Lizard) and would break the back if damaged and paralyze, if not, kill Spino if it got slammed on it's back in a fall or got shoved into a tree. You never know, we could create a cloning machine that works for dinosaurs, or a time machine. You just never know what the future holds. Everyone has their opinion, and this is mine.

I agree with everyone who says T-Rex would win. I also definitely agree that Spinosaurus is a fragile predator and would have lost in a fight with rex. However, I am on team Spino, and I have to say that Spino's time in the spotlight was very gratifying! But I am looking forward to hopefully seeing rex back in action for JP4.

Gotta love the enthusiasm for the King in here. Can't wait for the movie. I as well hope that T-Rex gets some revenge on Spino in JP4. Been waiting 13 years for this and I'm not going to be disappointed. and yes Spino did have size on his side but T-Rex had at least a Ton and a half to 2 tons on Spino as well as being built like a heavy weight made to fight and Kill heavily armored and Lethally armed Herbivores such as Triceratops and Ankylosaurus which were built like tanks, and to kill something built like a tank you need to be built like a tank as well.

I agree with the opinion that rex would have won. For those of you who have seen my other posts and comments, you know I am one of the few who feel Tyrannosaurus was the largest land carnivore, but that's besides the point. I estimate a max bite force for Spino at just over 2 tons per square inch. Rex had one between 3 to 9 tons per square inch. End of story. Spino slashes the rex a few times, but Tyrannosaurus would just have to bite the Spino on the neck, head, or spine and there's the end of the battle. Just sayin ;)

When i saw the Spinosaurus kill the T.Rex my face was:WTF

Well if all of that is true about the tyrannosaurus he would have won but look at the real thing, lions and crocodiles, the lion might have bone crushing teeth and the crocodile might have teeth designed for fish like a spinosaurus-rex but the crocodile was faster and larger the crocodile won because he had greater jaw length and he could lath onto the lion much easier than the lion could. but the simple fact is spinosaurus had large arms and could grasp his prey unlike tyrannosaurus who had to use his head and latch on. The winner spinosaurus rex

There's a difference between a lion and a crocodile, we all know crocodiles eat larger prey than fish, buffalo, antelope, zebra, etc. lions do the same thing and in that case, the croc is more like t-rex in terms of jaw power goes, like t-rex, their teeth and bite force is designed for crushing bones, not ripping or tearing. longer arms does'nt always mean better, the facts are that it was lighter and more fragile while t-rex was heavily built and more powerful. I think I'd place my bets on a dinosaur killer any day over a fish eater. Winner, Tyrannosaurus Rex.

Did anyone ever taken into account the Spinosaurus may be affected by drag while running? I mean a sail is essential the same as a drag fin on the back of a car only triple the size.

I have always believed that Spinosaurus' sail would have lowered it's agility. Spino was certainly longer than Rex and taller too. Rex- 43-50 ft long, 20-23 ft tall Spino- 45-56 ft long, 20-23 ft tall(head) 23-25 ft tall(sail) However, the spinosaurs as a whole seem to be lightly built for their overall size. Rex- 8-10 tons Spino- 5-7 tons All sizes here are based on my opinions, theories, and estimates. Thanks guys

I think while T-Rex had very powerful jaws, that doesn't mean he could kill the Spino in one quick bite. The Spino was big enough to be able to defend himself. However, I don't think they would fight. They would just respect each other if they passed by. But if one entered the other's territory, the could fight. It's a really even match, and while I like the Spino just a tiny bit better than Rex, it's hard for me to decide.

Quote: Spinosauru's jaw and teeth were, however, more fragile and "designed" to catch instead of kill, since it probably preyed on fish (it could have hunt other dinosaurs of course) ---Length, width, and depth do not necessarily determine robusticity. Despite spinosaurus lacking in both exceptional depth or width, its rostrum and mandible alike were still very strong and were actually very well designed for gripping large fish without injury; they were much stronger than many make them out to be. Their thin shape is an adaptation for reducing total drag in water, but that does not make them weak one bit. The fish that were taken down by spinosaurus were huge, and the theropod would have had little to no problems actually doing so in life. As well, its dentition, despite being conical and lacking distinctive carinae, was very robust and sturdy itself (which means that it would have a rather high breaking point) and was perfectly designed to puncture deeply. Under the right circumstances (such as a very quick and precise bite) they can be used to impact the spinal cord of a prey animal or opponent. Quote: The T-Rex evolved to kill hard prey as the Triceratops. At the other extreme we have a Tarbosaurus that evolved to kill sauropods as the Nemegtosaurus. ---Tyrannosaurids in general were designed for crushing, as evidenced by their very robust dentition and skulls alike. They were not very well adapted (unlike allosaurs) for taking down animals like sauropods. Instead, all tyrannosaurids were much better adapted for killing ceratopsians, ankylosaurs, and ornithopods, as those prey items do not require such a large gape and ability to rip out important tissue. Tyrannosaurids, just like spinosaurids, were poorly adapted for killing animals much larger than themselves. Quote: It had banana-like teeth that were made to crush bones. They were made like steak knifes. Some paleontologist believe that when he bites, he would have let some bacteria in the injury, leading to the death of the pray or rival. ---They were actually closer in shape to serrated spikes than anything, as they were very thick in cross section (more semi-conical) and were able to withstand intense amounts of stress. Allosaurs possessed teeth that were designed for cutting and ripping; tyrannosaurus did not.

Quote: I think Spino seems to just be more agile and "athletic" I guess you could say and would just be quicker than T Rex - Spinosaurus would have actually been very sluggish in some ways. Its muscular ridge (not actually a sail, contrary to popular belief) would hinder its movement heavily and it had proportionally shorter legs than tyrannosaurus. Also, being primarily a piscivore, such agility is not necessarily in a terrestrial environment. Quote: you know I am one of the few who feel Tyrannosaurus was the largest land carnivore - It wasn't… Quote: the lion might have bone crushing teeth and the crocodile might have teeth designed for fish - Wrong. Crocodiles are very well designed for crushing. Just like spinosaurus, their dentition is mainly designed for piercing and gripping, but it was still very robust and resistant in many ways. But one thing that separates modern generalist crocodilians and spinosaurus is the fact that the former animals have much wider, more resistant jaws actually designed for crushing and not piscivory. Quote: However, the spinosaurs as a whole seem to be lightly built for their overall size. Rex- 8-10 tons Spino- 5-7 tons - Spinosaurus was wayyyy heavier than that. More like 12 tons.