Jurassic World Movie News

The Spinosaurs

Rex Fan 684

MemberCompsognathusJune 01, 20132032 Views30 Replies
Spinosaurus is the best known of the spinosaurs. But the others were pretty terrifying too. Baryonyx- 30 ft long, 2.5 tons The first evidence for this dinosaur was a massive claw [img]http://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Baryonyx_BW.jpg/220px-Baryonyx_BW.jpg[/img] Irrator- 25 ft long, 1 ton When scientists discovered this spinosaur, they used plaster of paris to make the skull look more impressive. This was very irritating to other scientists. [img]http://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Irritator_dinosaur.png/220px-Irritator_dinosaur.png[/img] Suchomimus- 36 ft long, 3.5 tons This is one of the largest spinosaurs and a contemporary of Spinosaurus [img]http://upload.wikimedia.org/wikipedia/commons/thumb/0/0a/Suchomimus2.jpg/220px-Suchomimus2.jpg[/img] Spinosaurus- 56 ft long, 7 tons This is the largest member of the spinosaurs and a contender for largest land carnivore [img]http://www.walkingwithdinosaurs.com/suploads/dinosaur-details/dinosaur_spinosaurus/preview-screen.png[/img] Any Spino fans out there who don't agree with my info, there is no need to start a big argument. We all have our own theories.
"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
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What I find interesting is that the largest Suchomimus and Baryonyx specimens are subadults! Baryonyx possibly could reach around 35 feet and Suchomimus 40! Not as big as T-Rex at 43 feet but still big.
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Rex Fan 684
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I know right. That's the case for many dinosaurs. What if we found out that the largest Tyrannosaurus or Brachiosaurus was actually a juvenile, haha.
"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
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futurepaleontologist1
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I think it's kind of funny how frail Spinosaur's jaw was, but how ferocious a predator it's made out to be. It was phiscavorious people!
Pity is for the living. Envy is for the dead. -Mark Twain
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Baryonyx was originally going to be in JP3, but was replaced with Spinosaurus.
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Spinosaurus at least has a 40% chance of winning in a fight against a T.Rex (IMO), a Baryonyx would have next to no chance at all

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-

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Godzillasaurus
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@futurepaleontologist, Oh dear... Here we go again! Assuming you are the same guy on World of Animals and Animalia Enthusiasts who always calls me wrong, I have come to prove you incorrect yet again. Spinosaurus' jaws were NOT fragile and were actually very strong, even by comparison to animals like carcharodontosaurus; I can't stress that enough. The ability for spinosaurus to effectively grip large fish (yea, it was piscivorous, but the fish that made up the majority of its diet were huge) comes from the ability of its snout to effectively clamp down with decent amounts of force, the ability of its teeth to pierce deeply (they were conical and relatively slender) and grip efficiently without breaking, and the ability of its snout to resist multidirectional loads without injury. The capability for spinosaurus' snout to be well adapted for gripping large animals without breaking comes from its general robusticity and ability to resist the forces exerted by these large fish; its snout was not very large vertically or horizontally, but it was much stronger in the realm of gripping and being capable of doing so without injury than the snout of any allosaur (yes, you are the kind of guy that would claim this...) mainly attributed to its more robust morphology.-----------------------------------------------------------------------------------------------------------------Its snout and tooth morphology suggests high capacity for gripping; its snout was generally very strong and was characterized by reasonable vertical and lateral resistance alike and its teeth were built like thick spikes designed for gripping. Allosaurs did not possess this morphology, and it was only used for vertical motions and killing; being horribly adapted for gripping unlike spinosaurids, allosaurs would naturally have weaker multidirectional resistance in favor of greater vertical resistance. So no, spinosaurus did not possess a weakly-built snout at all and was instead far better adapted for gripping than allosaurs were.
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Carnosaur
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@godzillasaurus you mean the jaws that we have only found the lower jaw of? seriously? how can you claim it's jaws were so strong when you haven't found even the top jaw??

Nature doesn't deceive us; it is we who deceive ourselves.

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Carnosaur
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Furthermore, they haven'f found this things feet, or hands, or ANY part of it's torso. So, i'm assuming you made this up, or got it from a bogus source. I would love to be proved wrong, however

Nature doesn't deceive us; it is we who deceive ourselves.

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Lord Vader
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Oh dear indeed. Everyone has their opinions, and that's not about to be changed by one guy who posts freaking books about lateral pressure and whatnot on a predator, that we know next to nothing about.

Jack of all trades. Master of none

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Carnosaur
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oye...i'm just tired of all these bogus claims. you can have opinions, but when you state something as  fact that has NO evidence to support it...i just can't take it seriously..

Nature doesn't deceive us; it is we who deceive ourselves.

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Godzillasaurus
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@Prehistoric Fighting Grounds--- We have actually found a few decent rostra to work with (two of which were decently-constructed). So no, we do not only have the mandible to work with here...

This doesn't need sources cited; just observe the morphology of spinosaurus yourselves instead of being lazy and asking me to do it myself (I have explained to you guys time and time again why spinosaurus did not have a weak snout!). I am using inference and observation to make theories and yet you guys always claim spinosaurus to be weak because "itt wass a week fishy-eeter!" You two need to try harder than that!

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Godzillasaurus
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Let's look at the evidence, shall we:

Heavily-constructed snout (both rostrum and dentary inclusive)

Reasonable width and depth (not exceptional as we see in genera like tyrannosaurus or carcharodontosaurus), appearing to be for decent multidirectional strength

Thin jaws (for reducing drag in water)

Conical teeth that were very well designed for puncturing deeply and gripping

And, although not pertaining to the animal's actual snout morphology, long and powerful forearms that were ideal for grappling

All of these features suggest that spinosaurus hunted and killed large freshwater fish. This lifestyle is also evident in the surplus amount of such genera in its ecosystem (tropical plain environments). Not only does spinosaurus possess a fundamentally more robust morphology than animals well designed for killing (such as allosaurus for example, which would have been at an immediate risk of injury if it tried to grip a large animal in the same way that spinosaurus did), but the fish that it was specialized in killing were huge.

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Carnosaur
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i'm not lazy, in fact i just searched for your 'good rostra they working  with'...nothing! you obviously ignored my post about finding NOTHING of it's body. absolutely nothing. You sir, cannot claim Spinosaurus was robust in any way shape or form.

I will give you this: conical teeth are good for gripping. But that's just an observation in toedays crocodilians. I'd love to see this mandible they found, instead of you just claiming it was found, provide proof?

Using other spinosaurs, some of which were SUB ADULTS or are poorly known like spinosaurus isn't a good point at all.. no spinosaurs had ' robust' skulls. most are long and narrow enter suchomimus:

File:KDDM Suchomimus Skull.jpg

Does this seem robust to you in any way? it's entirely long and shallow. 

You can guess at all you state above as your opinion. There is literally no scientific evidence to back up for claims godzillasaurus.

Nature doesn't deceive us; it is we who deceive ourselves.

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Rex Fan 684
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Just because Spinosaurus had well constructed jaws, does not mean they had high bite forces or powerful jaws. Daddy Long Legged Spiders have extremely deadly and powerful veonom, but their fangs are so short they can't use it on hardly anything. Spinosaurus may have had well construced jaws/teeth, but if it's jaw/neck muscles weren't all that powerful, then it really didn't have much of a chance at having a high bite force/jaw strenth.

"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
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Carnosaur
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and to address your point that allosaurus couldn't grip prey like spinosaurus did...Spinosaurus was an adapted FISH eater like other spinosaurs. No wonder it was better at gripping it's prey! allosaurus wasn't a fisher, so your point doesn't make sense to the argument.

I'm not trying to be hostile or anything, but c'mon man! give evidence..

Nature doesn't deceive us; it is we who deceive ourselves.

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Godzillasaurus
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Quote: i'm not lazy, in fact i just searched for your 'good rostra they working with'...nothing! you obviously ignored my post about finding NOTHING of it's body. absolutely nothing. You sir, cannot claim Spinosaurus was robust in any way shape or form.

--This is about its snout robusticity, not its entire body morphology.

Quote: I will give you this: conical teeth are good for gripping. But that's just an observation in toedays crocodilians. I'd love to see this mandible they found, instead of you just claiming it was found, provide proof?

--http://en.wikipedia.org/wiki/Spinosaurus

Quote: Using other spinosaurs, some of which were SUB ADULTS or are poorly known like spinosaurus isn't a good point at all.. no spinosaurs had ' robust' skulls. most are long and narrow enter suchomimus:

--So you're using suchomimus as a decent analogy for spinosaurus? Even when it was so much more gracile than spinosaurus (baryonychines were considerably more gracile than spinosaurines and were less well adapted for gripping resistance).

Quote: Does this seem robust to you in any way? it's entirely long and shallow.

--Spinosaurus begs to differ. It was still relatively narrow, but its snout was considerably broader and was far better adapted for killing large animals efficiently without breaking.

Quote: You can guess at all you state above as your opinion. There is literally no scientific evidence to back up for claims godzillasaurus.

--Oh, but there is... I have explained this too much...

Quote: Just because Spinosaurus had well constructed jaws, does not mean they had high bite forces or powerful jaws.

--THAT is what makes its jaws strong in the first place: their very heavy build. High biting forces are not a necessity for spinosaurus; what matters instead is a high capacity/ability for its snout to withstand the pressures found in predation.

Quote: Spinosaurus was an adapted FISH eater like other spinosaurs. No wonder it was better at gripping it's prey! allosaurus wasn't a fisher, so your point doesn't make sense to the argument.

--The fish that spinosaurus was adapted to kill were huge and very powerful, you know that right? Its snout was perfectly designed for withstanding the stress that would be experienced in gripping them without breaking as evidenced by its robusticity; that is really the bottom line here. Allosaurus killed with quick and forceful vertical bites utilizing its maxilla solely, but its snout and teeth were simply poorly designed for gripping without injury. For spinosaurus, this is rather the opposite case. Both animals killed different animals is entirely different ways, thus it is unwise to believe that spinosaurus was weaker than allosaurus

Compare the skulls of spinosaurus and carcharodontosaurus here:

http://images3.wikia.nocookie.net/__cb20101003190116/archosauria/images/e/e2/Skulls2.png

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Carnosaur
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did...did you just use wikipedia as a source? For the last time :WE DON'T know the body plan of spinosaurus! allosaurus is a terrible anology. two COMPLETELY different animals. Allosaurus wasn't a specialized fish eater, so OF COURSE it wasn't good at gripping. it's teeth weren't meant for that. Why? because....as i've stated...it wasn't designed for it. point blank period.

You haven't explained anything! all you have done is state your opinions. that is all, anything else you claim is just B.S. The only source you have given is wikipedia...also, no mention of a rostra in it whatsoever, only teeth and the vague phrase 'possible material'

Onchopristis was a huge fish yes, but i didn't say it wasn't in any way shape or form. 

P.S. i use suchomimus because that's what ole' spiny has it's body plan based off of XD

Nature doesn't deceive us; it is we who deceive ourselves.

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Rex Fan 684
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Godzillasaurus, you aren't gonna convince anyone anytime soon. There's no point. Your opinion belongs to you and I'm not about to let you force it upon everyone else by stating that it's the absolute truth.

"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
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UCMP 118742
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It's pretty funny that the same WIKIPEDIA article which you used also states that the skull of Spinosaurus had poor resistance in comparison to other Spinosaurids like Baryonyx.Even though i don't think that the jaws of Spinosaurus were as robust as you make them, i don't believe that they were less robust than the jaws of a Baryonyx.

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-

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Carnosaur
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Wikipedia isn't the best source ;) I respect other peoples' opinions...but when you flaunt them as pure fact, that's when i say somethin.

Nature doesn't deceive us; it is we who deceive ourselves.

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