T.rex was bigger (=heavier) than Spinosaurus

That's great! Other evidences for my and RexFan's theory. Thanks for the article link Gigadino! ;)

Also, 4,4 t for Spino, it should be a reasonable minimums weight.

OFF TOPIC- Gigadino, sei per caso italiano? :)

Sì, sono italiano ;)

Ne ero sicuro, haha. Anche io lo sono, pero adesso vivo in Romania. Ho vissuto in Italia per 12 anni comunque... a Milano.

Comunque, grandiose notizie!

And Spyrannosaurus called me insane for believing this! This is a great find. I've always felt 4-7 tons was a reasonable range for Spinosaurus.

He called everyone but Gigadino and S-Rex insane, not to mention got banned for it. This is awesome, and 4.4 ton area, that's freaking light. Some theories have been proven right, thank you Gigadino.

Good point MrHappy. Either way, I'm really excited right now.

This is exciting news. Not sure if S-Rex or any other members of team Spino will like this (the Rex-Haters especially).

Well, like it or not, it's a very accurate, very possible theory/study. And I'm not just saying that cause it coincides with my theory. 

True. Does this make Rex the undisputed King again? Of course, Giga and Charcar are a side note, but besides them.

It certainly helps T-rex out. Giga and Carchar are likely lighter too(more slender), so T-rex is probably heavier than them too.

Exactly. The King is back, and bigger than ever (that would be a cool line for Jurassic World, Eh?)

Haha, it would be good.

Everybody knows me, im not gonna let go of spinosaurus being bigger in every way than trex, especially wieght. Those are that sites opinions, not facts and never will be until absolute proof.

I was waiting to see what you'd say S-Rex. As has been said in EVERY Rex vs Spino, everyone has opinions, and that's fine that you think Spino is bigger than Rex in EVERY way (bite force excluded, right?). Our opinion appears to have SOME scientific evidence however, but as you said, we may never know (never say never, have you heard about the T-Rex soft tissue discovery, we're that much closer to JP IRL).

Hey, I'm not gonnna tell people what to believe. But I will say the support for the theory that T-rex remains the largest land predator is building. In fact, there may be more evidince and support for T-rex being heavier than Spinosaurus than vice versa at this point.

I think that's impossible. Maybe Spinosaurus was 55% heavier than Tyrannosaurus, but not 55% of its size. If you looked at reconstructions of their largest specimens side by side (Sue and MSNM V4047) and actually measured out the surface area, you would see that Spinosaurus is much larger than Tyrannosaurus. There is no way around that. Sue may have marginally outweighed the first Spinosaurus specimen (14 meters) but could not outweigh MSNM V4047 (16-18 meters) assuming it had the same build as Suchomimus, Baryonyx, and other spinosaurs. If anything, it would have a thicker build to support the greater weight.

As said before, everyone has opinions, so I respect yours so long as you respect mine.

Also, welcome back Philosiraptor, haven't seen you in a while.

We may never know how much was big Spinosaurus. Spinosaurus was likely longer (maybe around to fifty feet), though T.rex, according to Cau, was heavier. Hell, I think too that 4,4 t it's feak light, I think that 1-2 tonnes more than that is more likely, but hey, it's just me.

Not just you Gigadino, there are at least two other members (me among) that share this very thought.. 4,4 t is certainlly a minimum. Also, Spino is too fragmentary for a precise size to be estimated.

But, hey, this is no Rex vs. Spino. Is about Rex being heavier than initially thought by people.

I agree with philosoraptor, spinosaurus Rex, and mr.Happy.

the bite Worcester was weaker but not weak, Rex may have been heavier or maybe it wasn't we need more fossils on spinosaurus before we can compare things between the two predators, but I think 4.4 tons is a little light for a 58ft lizard, I am actually happy about this because I've been researching spinosaurus leg bones and muscles and it had strong leg muscles, so if he's light, he's fast which supports my theory of him being an apex predator, naut if he is heavier then he was a bit slower but still and deadly predator

As long as he's a giant apex predator, then I'm happy

It's surely the apex predator, now depends only on the niche. In the waters it was Apex predator for sure, and perhaps it had a chance against Carcharodontosaurus on land.

Philosiraptor, nothing's impossible.

Like I've said, 4-7 tons is the most reasonable range to me. 

And SpinoBro, Spinosaurus will always be a gigantic and apex predator. The question is how gigantic? 7 tons is still huge no matter what, so if it was that heavy, I'd still consider it a giant predator.

In my opinion,Tyrannosaurus Rex would win.Even though Spinosaurus had huge size but Tyrannosaurus Rex has greater bite force and weight.Also both of these dinosaurs have good sight.Tyrannosaurus Rex had good sense of smell too.But none of these two predators encountered each other since Tyrannosaurus Rex lived in North America and Spinosaurus lived in Africa.Just having big size doesnot make you strong.If they meet though,it would depend on who sees who first.Also Tyrannosaurus Rex had to take down preys like Triceratops and Ankylosaurus which is extremely hard.But even though Spinosaurus could take down prey much larger than it,it didnot have to since it could eat fishes like modern days grizzly bears which are often got rid of by wolves which are smaller than grizzly bears and hunt and live in packs.So, Tyrannosaurus Rex might have lived and hunted in packs of their family like Dad T-Rex,Mom T-Rex and their children which would join them after being adult/young.Male Lions are a great rival of each other.But male Lions also join forces,sharing mates and hunting together.So, it is possible that Tyrannosaurus Rex hunted in packs and some evidence of this is found.But still no evidence of Spinosaurus hunting in packs has been found.So, there is a 60% chance of Tyrannosaurus Rex winning and 40% chance of Spinosaurus winning in my opinion.

Nope, spinosaurus was actually heavier at around 12 tons by comparison to a bare maximum of 8 tons for tyrannosaurus.

Quote: Also Tyrannosaurus Rex had to take down preys like Triceratops and Ankylosaurus which is extremely hard. But even though Spinosaurus could take down prey much larger than it,it didnot have to since it could eat fishes like modern days grizzly bears

Spinosaurus was actually poorly adapted for killing animals much larger than itself. The ability for it to be an apex predator (this is rather quite debatable) comes from its immense size advantage over all if not most of the other predators in its ecosystem, not from its ability (or lack thereof) to kill large animals like paralititan. It was not designed for killing, but instead gripping to say the least. Most of its diet was made up of large fish such as onchopristis and moderately-sized mawsonia, simply because it was adapted to hunt such animals; much of its morphology suggests high aptitude for gripping as opposed to killing. This flows into the point that carcharodontosaurus was designed for killing animals like paralititan but would likely risk injury if it tried to kill the same kinds of creatures as spinosaurus by gripping. Let alone the fact that it was simply poorly designed for gripping in the first place.

Thus, spinosaurus did not "not need to kill larger animals than itself", but instead was simply poorly designed to do so and was instead well adapted for gripping large and powerful fish. Carcharodontosaurus was the direct opposite (gripping vs killing). Both animals were designed to hunt and kill different things in very different ways, simply to compensate for their respective niches.

And the idea that tyrannosaurus hunted in packs is merely a theory. The same thing goes for giganotosaurus, actually

I hate to say this, but I actually agree with you.

Honestly, (and this my opinion, not being a Rex-Hater) I think this ludacris, Spino was more than likely at least 11 tons.

Godzillasaurus, spino's mouth was just like a crocodile, the same teeth, the same killing style (in water), and the same eating style (thrashing the prey around to get a chunk of meat). Its head worked the same way as a croc. There is one thing I do agree with however, I don't think it would take on a parilititan. But there were other dinos it could kill such as aegytposaurus, ouranosaurus, and other small to medium dinos.

Plus you forgot its deadly 15in. claws that are supported by 7ft. long, strong, arms.

And did someone actually get banned from the site?

Actually, we have no proof that Spino had 7 foot long arms tipped with 15 inch claws. The only remains ever found of Spinosaurus are a few neural spines, part of a skull, and a few ribs I think, no arms, no hands. 

I thought he was banned, but he was online recently, so I'm not sure.

Assuming that you are referring to species like Crocodylus Porosus and Crocodylus Niloticus, that is incorrect. Its snout was in fact far more specialized than that of most modern crocodilians and was analogous to species like the false gharial and freshwater crocodile most of all.

Quote: the same killing style (in water)

Assuming that you are talking about the death roll, spinosaurus could not due this... Its bipedal and primarily terrestrial morphology would not allow it. Let alone its enlarged spinal column that would hinder such a movement...

Quote: and the same eating style (thrashing the prey around to get a chunk of meat). Its head worked the same way as a croc.

Spinosaurus could not do this; its skull was not designed to withstand such torsional stress. It was strong, but it was merely designed for gripping.