Dinosaur duels #7: Mapusaurus pack vs Tyrannosaurs pair

Eh, rooting for T.rex :/

Sorry, to disopoint ya rex fan and I'm sure many others I just think that this gang would be to much for even the king.

Well, your fight not mine ;)

its OK, wierd how they pooled its arm off, but still i rooted for them

Don't agree with the winner. IMO Mapusaurus was too lightweight to even take on a Tyrannosaurus. Even 2 Tyrannosaurs vs 4 Mapusaurs, I believe the Tyrannosaurs would over power the 4 carcharodontosaurs. Oh well, as Rex Fan saud, "Your fight, not mine" Still a good fight though.

Primal king they didn't over power the rexs they used their speed to beat the rexs, and saying that one rex could beat 4 Carcharadontosaurs seems a bit ridiculous but your in titled to your opnion

4 Mapusaurus vs 2 Tyrannosaurus, I woulda still given the edge to Rex. Rooting for Rex, but hey, as had been said before, your fight not mine. 

Good fight anyway.

I think he meant 2 could do it, not 1. But maybe he did mean only 1. I don't know.

Hey, I just realized that T-Rex fights tomorrow in RS.

PK did say Tyrannosaurs.

A pack of 3 would have been so much more fair in my opinion, considering Mapusaurus's size.

Good job on the writing anyway.

Yes, I meant 2 of them. By overpower, I meant that I think 2 Tyrannosaurus' would overwhelm the Mapusaurs, no matter how much speedier they were. (Not much) If your 40 feet long, you're not gonna be THAT much more agile than an animal 50 ft long. It's just my opinion, but I just think even 2 Tyrannosaurs would overwhelm 4 Mapusaurs.

We'll first off I myself see rex as 40-44 feet long because animals such as ucmp are so fragmented its hard to consider seriously, and second off all mapu in my book is 30-35 feet long and 4-6 tons while rex is 40-44 feet long and 7-9.5 tons and mapus were less heavily built then rex making it easier to move around.

Primal you said a rex could over power 4 carchar not mapus 

carchar 40-47 feet long 6-8.5 tons

HHA, PK said that a pair of Rexes could overwhelm the 4 CarcharodontoSAURS, not 4 CarcharodontoSAURUS. Mapusaurus is a Carcharodontosaur, which is why PK refered to them as that. This has nothing to do with Carcharodontosaurus anyway. 

I'm not going to debate over size, though I have had access to certain specimens and holotypes that move up Tyrannosaurus' size quite a bit. Also, ^Exactly what Mr. Happy said. My point is, it wasn't THAT much more agile where it would be a game-changer and give Mapu a significant edge. If Tyrannosaurus could kill an animal only slightly more agile than it with one to two good bites, the odds are in Tyrannosaurus' favor. It was still a good fight though! Well written and lengthy. I just have a different opinion on the outcome is all. But, it's your fight.

hold up, just hold up a second there. you say animals such as ucmp are so fragmented its hard to consider seriously.

 The Fragmentary giant tyrannosaurs have had skeletals made for them by Scott Hartman, along with size estimates. Here's the ucmp you're going on about, and it's quite massive compared with 'sue' and 'stan'.

Some other large tyrannosaurus specimens.. one grid= one meter..

Photo Cred goes to Scott Hartman of course.

So tell me, how do you establish that size range for Carcharodontosaurus, and then utterly rule out the UCMP specimens? Just so you know, there are other giant fragmentary Tyrannosaurus specimens as well. RexFan has gone into detail on some, so if you want to know more ask him i guess.

 you go on and say Carcharodontosaurus was 40-47 feet long 6-8.5 tons when the fossils we have of C. Saharicus are slim to none?Please, do not give me the excuse of "It's a scientifically established estimate" as i've seen estimates for this thing thrown around quite wildly.

The remains for C. Saharicus consisted of a partial skull, teeth, cervical and caudal vertebrae, a manus ungual, an ilium, a pubis, a femur( measuring 1.26 meters) and a fibula. 

Scaling from that femur alone - and basing it off of Concavenator, Eocarcharia and the like- i have come up with the estimates of ~ 11.67 meters and 5.5 tons. This is rough, mind you and my math really isn't all that great. Note that i did not use the skull, as the lenght was vastly overexaggerated when this thing was first discovered.

I myself just did a detailed post on C. Iguidensis calling for it to be a new species, even if it is in the Carhcarodontosauridae it is in no way a C. Saharicus. Want more info? go to my profile. I'm feeling far too lazy to put a link..

FYI, there's no way a 30-35 foot mapusaurus weighed 5-6 tons. That's in the lower most bounds of Giganotosaurus and Tyrannosaurus, which it is much less heavily built then. A Mapusaurus in that length category would weigh ~3-4 tons at the most.

Rooting for Rex, but good fight.

Hey Carnosaur, don't forget UCMP 118742. This guy is about the same size as Sue, but only 16 years old. Talk about a potential giant! I like how you pointed out everyone's ready to give an estimate for certain species based on fragmentary remains, but once you try it with T.rex, it's crazy.

It's not tht its crazy, it's that for rex we have many other specimens all ranging from 7-9 tons and 37-42 feet long, so we can't just start averaging rex that high. We can put a max of that high but not an average, also the method that got those specimens above 10 tons hasn't been done on other dinosaurs.

.

Oh also about ucmp 118742, did you ever consider the reason that it died was because it was growing to fast for its bones to handle.

Or the reason it's only known from a few bones is because it was snuffed out by a rival and then his corpse was eaten. 

Personally, I feel T.rex averaged about 12-13 meters long and 7-9 tons while it reached a max size of 14-15 meters long and 10+ tons.

Agree with most pf your estimates don't know if I agree with 15 metre. Or above 10 tons.

I myself see rex averaging at 7-8 tons and 39-44 feet long 

and maxing at 9-10 tons and 45-47 feet longI personally don't think any theropod geting above 10 tons.

Hmm, turned your post about a fight into one about T.rex size estimates. Hmm, how bout that, haha.

Haha, guess that's the world we live in.

@RexFan yeah man, it's always bothered me that we have always jumped the guns when it comes to giant theropod remains. People are always so quick to try to dethrone tyrannosaurus as the largest predatory dinosaur, and they do it off of very few bones. But it's absolutely not ok to scale up a few bones of potentially very large Tyrannosaurus individuals? logic.

Oh also about ucmp 118742, did you ever consider the reason that it died was because it was growing to fast for its bones to handle.

Erhm, no. I have yet to hear a case of this happening in any animal, let alone Tyrannosaurus.

It's not tht its crazy, it's that for rex we have many other specimens all ranging from 7-9 tons and 37-42 feet long, so we can't just start averaging rex that high.

Well, when we have a little over 40 or so specimens of Tyrannosaurus Rex i think it's safe to assume that we can guess a basic average for these theropods' length and weight. They do that with Allosaurus Fragilis, why is it not plausible with Tyrannosaurus?  37-42 feet long and 7 - 9 tons is right on the money imo.

nice to see rex lose for once and how would rex pixk up mapu? mapu was even bigger than giga which in turn was bigger than rex so yeah but good match!

For the ones who say that mapu is too lightweight comparated to t.rex, count with the theory that mapusaurus might be a more fragmentary specimen of giganotosaurus.

What i've seen in planet dinosaur is that the paleontologists reconstructed mapusaurus by mixing the young,small ones with the old more fragmentary(almost as fragmentary as MuCpv-95) ones.and what's the problem with this?We have no idea how they changed during growing.I'd be curious how the combined reconstruction of the mapusaurus and giganotosaurus will look like.

good fight, for me rex has more chances , it is way taller bigger and heavier and female rexes were bigger than males

^Sorry, but there's no supporting evidence that females are larger other than their wider hips, but that's so they can lay eggs.

I'm surprised that the Mapu vs Rex fight caused more controversy than the Rex vs Spino fight