Jurassic World Movie News

Spinosaurus: Evidence For A Sail, Not A Hump

Rex Fan 684

MemberCompsognathusJanuary 05, 20147971 Views34 Replies

It's been stated once and a while that Spinosaurus had a hump rather than a sail. However, I have been doing some digging and came up with three points that support the sail theory.

 

1. It would slow down the animal. Being that big already would have made Spinosaurus pretty slow(20 mph or so). Add a massive, fatty hump, and suddenly he's even heavier, and therefore, slower.

 

2. Spinosaurus lived in the wet, humid environs of middle Cretaceous Africa, not the water-parched deserts inhabited by modern camels. (Ironically, the jungle-like region of northern Africa inhabited by Spinosaurus 100 million years ago is today mostly covered by the Sahara Desert, one of the driest places on earth.) It's hard to imagine that a hump would have been a favored evolutionary adaptation in a place where food (and water) was relatively plentiful.

 

3. A Spinosaurus "spine" was recovered(in 2008 I believe) and it was bitten in half. It's been assumed that the injury was caused by a Carcharodontosaurus. If Spinosaurus had a hump, it would have been very difficult for a Carcharodontosaurus to bite through that thick layer of fat and muscle to reach the bone below(keep in mind Carcharodontosaurus had a pretty weak bite). The only way it could have bitten the spine in half would be if it was relatively exposed with only a thin layer of skin protecting it.

 

So, all in all there seems to be some good evidence supporting the sail theory. However, nothing is certain. I just felt like sharing this with you all. As far as the sail/hump debate, the jury is still out.

 

 

"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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Sci-Fi King25
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You started the best debate Scified has seen since Rex vs. Aegyptiacus.

“Banana oil.”- George Takei, Gigantis: The Fire Monster

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Sinornithosaurus
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@Rex Fan

Good point, but if it was a sail, I honestly doubt it would only be skin. A bit of muscle in there seems likely.

 

[url]http://sinornithosaurus.deviantart.com
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x_paden_x
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Well, If its a thin hump, it would be more of a sail, would it not...

 

Also, If it was a hump, like a full blown not thin one, it would not have those "spines" for the sails to hold it up, it would hold itself up like a camel 

 

 

However, to play the devils prada, it could use it as a stabilizer, but it would need to be thin... Or very wide...

 

So In conclusion, It could have a thin hump, but it wouldnt be a hump, because humps are wider. So It is most likely a sail... But could very easily be a hump, But until we have enough info for clousure its impossible to be sure...

 

@Rex Fan 684 Hmm, Come to think of it, I do remember, I probably forgot about it... 

Life cannot be contained, it breaks walls, crashes through barriers sometimes painfully, but uh... Life uh, finds a way

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Rex Fan 684
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Sinornithosaurus, it probably did have a network of veins and arteries to carry blood throughout it, so you're right, there would be more too it. But with a hump being pretty unnessary in its environment and the fact that a neural spine was found bitten in half, I feel safe in saying that the odds of it having a sail are about 80-85 percent with a hump being about 15-20 percent at most.

"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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Elite Raptor 007
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I don't think it's a hump! the Spino live in a area which its like a kialahari in preent day, in there there a lot of big prey so a hump is doesn't really needed,

if it's a sail. that's more Reasonable the climate of that time was pretty hot, so the sail is more likely to be a cooler, like elephant Ears that controling heat.

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UCMP 118742
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i think that the Spinosaurus did have a hump as a juvenile (like a camel, in case something happens and the youngling has to survive for longer than usual without his parents feeding him) and as he grows the hump becomes thinner and the 'spines' would start to grow faster than before

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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Gigadino
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Spinosauru didn't needs to be fast, guys. He was most likely a fish-eaters. Also, Spinosaurus neural spines looks more like to the bison's (wich haves a hump) than the Dimetrodon's (wich has a sail). Sorry, but I agree with the hump.

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Rex3655
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It was most likely a sail with hollow bones used as a mating decoration and for a thermoregulation mechanisim like Dimetrodon's sail

 

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Rex Fan 684
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GigaDino, speed and whether an animal needed it is up for debate. However, the other points(environment and the bitten spine) still stand.

"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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Raptor-401
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Nice post.

IT'S TIME TO DU-DU-DU-DU-DUEL!!!

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Nathaniel Romig
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I could have told you it does not have a hump

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