T rex and spino size?

That's about it. Perhaps a little lighter for Spino on the high end, but that's about the size.

Welcome to the forums, I'm Mr.Happy9097, one of the JW forum moderators. If you need help with anything at all, just ask anyone here. 

Eh, don't really care much for either of these dinos. I'd say my favourite would probably be spino just because we know so little about it.

Anyway, welcome to the forumns, and be careful with rex vs. spino, as we do not wish to start Jurassic World War (insert current number here)

I can agree with this. Also, welcome to the forums!

(And @Silver_Falcon, it would be the third war)

Welcome to the forums :)

Okay ill tread carefully! And I guess spinos is like 4 to 7 ton, I wonder if cau was right about the spino being 4 to 7 tons and like 14m

And thanks for the replies! This form is so much less bias them animal vs animal or Carnivora!

Trexis supposed heavier built than Giganotosaurus otherwise those are pretty good estimates, except that Rex is actually 12.2 m and Spino is 17 m. Spino would probably be 7-10 tons and 13 tons max because if  it was an occasional swimmer it wouldnt be too heavy.

WELCOME to the JW forums. Im more active on the Godzilla movie forums but I still cone here.

Here are my personal estimations for spino and rex.

Rex average 40-42 feet long 8-9 tons

spino average 49-52 feet long 5.5-6 tons

Rex max 43-46 feet long 9-10.5 tons

Spino max 53-55 feet long 7-8 tons

welcome to the Jurassic world forums!

Hiphopanaomus (whew, hope i spelled it right :p) I agree with those estimates entiraley also Mr.Happys! After a long time frin JP3 spino is finnaly not getting to exagretaed in size!

anywhere from 4-6 tons is too low IMO. 

An 11 meter suchomimus weighed 3 tons, therefore a 15/16 meter animal would weigh (at the very least) 7 tons

Huh, i guess suchomimus was a bit under weight? But then agian what was spinos actuall lenght and height, not much to go on, except for the lower jaw and some vertibre if I do rember correctly. :( But yea 15 to 16 is probably most acurate! 

Spinosaurs in general were moderatly built theropods.

However, an animal with an axial length longer then the other terrestrial large carnivores, it definetly wasn't that light.

we actually have more of spinosaurus then you think;

BSP 1912 VIII 19 - the holotype consisting of right and left dentaries  long; a straight piece of the left maxilla that was described but not drawn; 20 teeth; 2 cervical(back) vertebrae; 7 dorsal (trunk) vertebrae; 3 sacral vertebrae; 1 caudal vertebra; 4 thoracic ribs; and nine neural spines, the largest measuring  1.65 meters (5.4 ft) in length.

NMC 50791, - mid-cervical vertebra which is 19.5 centimeters (7.7 in)

MNHN SAM 124 - partial premaxillae, partial maxillae,vomers , and a dentary fragment). no length was stated.

UCPC-2 i - Consists mainly of two narrow connected nasals with a "fluted crest" from the region between the eyes. The specimen, which is 18.0 centimetres (7.09 in) long.

MSNM V4047 - premaxillae, partial maxillae, and partial nasals) 98.8 centimetres (38.9 in) long from the Kem Kem Beds.

The problems with estimating these guys is we have very few individuals, out of the millions that once stalked our little blue planet. We don't know if the ones we have found are just freakishly large, or small. Though we do have a better concept of this with Tyrannosaurus, the 'average' size is still very much unknown.

Allosaurus Fragilis, of which we have nearly 40 individuals...now there's a species we can do that with. 7.5 meters and 2 tons is the average for this species, though we still can never be 100% sure on this. Nothing is concrete in paleontology, and never will be. That's what keeps this interesting little field alive though

Welcome to the forums and I hope to see more cool posts like this one soon.

I'm sticking with my estimates.

Nice attempt but I think it's time to post the scientic estimates.

Spinosaurus: 17-18m long, weight 11-13 tons

Giganotosaurus: 13.2m-14m long, weight 8-10 tons

Carcharodontosaurus: 12m-13.7m long, weight 7-9 tons

Tyrannosaurus Rex: 12.3m long, weight 7-8 tons

@Carnosaurus

A sub-adult Suchomimus was 11m long ans weight 4-5 tons. It's very possible it still grew larger. Scientists scaled the 3 or 4 ton Suchomimus and got the current Spinosaurus. You apparently did your math wrong.

Nice attempt but I think it's time to post the scientic estimates.

That seemed a tad bit unnecesary.

 You apparently did your math wrong.

I never stated i did the math on that, seems like you read it wrong.

A sub-adult Suchomimus was 11m long ans weight 4-5 tons. It's very possible it still grew larger

Plausible, yet they haven't found a whole lot of Sucho remains. Also, that's a pretty large subadult. Can you show me a paper stating it was a subadult animal? I find isometrically scaling off of an extant relative such as suchomimus to be rather troubling, even incorrect at times.

Here's an example;

I really hate experiments that are biased towards "over-liberal" estimates. I think some people here are too optimistic with liberal estimates. I am not defender of consevative ones. 

Gorgosaurus holotype's twelft dorsal vertebrae (150 mm) is only 11 mm shorter than in T. rex specimen AMNH 5027 (161 mm). Despite this Tyrannosaurus was around ~12 m, while this Gorgosaurus only 8.25 m.

So the Gorgosaurus would be ~11 m in length based on this T. rex dorsal.... eghhh no thanks. Even based on modest Henderson's 10.7 m, it would be almost 10 m. That's doesn't make sense.  Why would it make any sense what so ever to do this with Spinosaurus?

Another tyrannosaurid comparison, The largest Known Daspletosaurus specimen is 9 meter long and has a 1.04 meter long skull, scaling from it you can estimate the largest Tyrannosaurus up to 13.1 meters! when scaling from Gorgosaurus which has a 9 meter long body and a 99 cm long skull you can estimate the body of FMNH PR 2081 up to 13.8 meters. Consensus: Do not scale isometrically from smaller taxa despite how related is it to the larger animal.

Carno, I posted a link to that discussion for him to take a look at, and he never responded. Don't expect a response for that. Haha, not that it matters. 

didn't even see that post where you linked it in, haha my bad...I don't think he read it because it shows Spino might not have gotten as big as 19 meters..*sigh* oh well