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#dinosaur #carcharodontosaurus #spinosaurusaegyptiacus
Published: 2014-10-28 00:42:14 +0000 UTC; Views: 7921; Favourites: 128; Downloads: 0
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....then it might be a Spinosaurus Aegyptiacus. Some recent finds and analyses have brought Spinosaurus to the the forefront showing it may have been a more aquatic dinosaur. Meaning, that it spent more time in and around the water like a duck, rather than being a more land based predator. Like other spinosaurs and related dinosaurs (suchomimus) it's head, mouth and jaw construction and conical teeth indicate it was a fish eater. Currently, due to some skeletal parts still missing there is a debate as to how large the hip and back legs really are. New finds suggest the back legs are smaller than originally thought, making it a quadruped on land, but there is some question to this from some dinosaur anatomy experts. All that said, it has been shown that it's rear feet were flat and likely webbed (like a duck) and still no one knows for sure the flesh and muscled structure of the "sail" on its back or why it even has one.A native of northern Africa in the mid Cretaceous, (between 100-90 million years ago) it lived in a land dominated by rivers, deltas, vast floodplains and swamps. At that time North Africa was closer to the equator and shallow seas separated west and east North Africa until the later Cretaceous. Spinosaurus also shared the landscape with some other large predators of the day, namely Carcharodontosaurus (You can see one on the shoreline here) and Deltadromeus. There were few large, long necked sauropods in the region, if any, but there were lots of giant fish and many types of turtles and Iguanodont types of dinosaurs and of course many crocodillians. Given that there were at least three or four predators in overlapping times and regions, it is believed there was enough diversity in prey, and niches, for everyone to be happy. As we know, this is conjecture based on the perceived environment from the fossil record and things can always change a bit as new information "evolves" (Heh). Again, that said, the knowledge of the flora and geology through the ages is very well trusted and categorized, so paleontologists can make very good educated guesses on physiology and habit of these extinct animals.
Model: SpinosaurusDR2 by Dinoraul over at Renderosity
On shore is Carcharodontosaurus made of Dinoraul's Giganatosaurus and MNArtist's and lmx3d's Carcharodontosaurus morph, also available at RenderosityΒ www.renderosity.com/mod/bcs/caβ¦
Rendered in Vue 2014 infinite.
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Comments: 48
JokerCarnage5 [2016-04-26 15:24:55 +0000 UTC]
If it walks like a gorilla, swims like a duck and eats like a crocodile, It must be a Spinosaurus.
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grisador [2015-04-23 14:51:29 +0000 UTC]
Awesome Artwork
Do you know the Chimera Skeleton possiblity ?
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adorety In reply to grisador [2015-04-24 02:33:21 +0000 UTC]
Thanks. If you are referring to mixing up bones from different species thinking they belong together, then yes. Luckily paleobiology and biology is much better today than even fifty years ago, let alone back in the late 19th and early 20th centuries.
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grisador In reply to adorety [2015-04-24 14:02:32 +0000 UTC]
You are very Welcome !
While I really agree with your statement (Best example is 19th Century ''Iguana Iguanadon'') but putting a subadult/juvenile's (even a possible second species) legs onto an adult can result with Very possible inaccurate skeleton's and models
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adorety In reply to grisador [2015-04-24 21:47:10 +0000 UTC]
Yes. I can see the possibility of that happening. That may even be why there is such a discrepancy on the now suspected leg size of Spinosaurus. I still lean to it being more bipedal, but can accept the aquatic lifestyle.
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TheMonkeysUnkle In reply to adorety [2015-06-05 05:49:29 +0000 UTC]
You've got to wonder about something. Why are other spinosaurids still believed to have been bipedal when spinosaurus is not? Another thing that I've yet to see addressed is it's method of locomotion while in water. Simply paddling would not have granted it enough speed or maneuverability to catch fish.
The most obvious change would be in the tail, which would have had to be much stronger, but also more flexible than most theropod tails. A significantly different function would also require a different muscle and bone structure. This is something I'd like to see accounted for. Of course, without actually finding the whole tail, we'll never know for sure, but it just seems to me that most people have forgotten what else this might mean in favour of OMGSPINOSAURUSSWIMSWTF!!!
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adorety In reply to TheMonkeysUnkle [2015-06-06 00:36:29 +0000 UTC]
I hear you. I'm not a scientist and there is still not a lot of bones needed to to assemble this creature in a revealing manner. I have to wonder if some of what they have may be from a different Spinosaurus. Younger, different gender? Also the bones are pretty warped due to compression over time. I admit to being on the fence, but I lean to the beast being bipedal. That said, it was one of the last, if not the last spinosaurid in the evolutionary tree. Maybe this one was evolving to a more aquatic lifestyle. As for catching fish, the skull they have shows that it did have nerves/sensors in it's snout very much like a crocodile, so it probably did hunt with those senses rather than eyes, likely making it an ambush predator. With it's high nostrils it remains to be discovered whether it stood over the water or laid in wait like a croc. I'm thinking it stood. But other theories abound and judging from the paleobiology of the feet, many scientists think the rear feet likely had webbing, so this could account for part of the locomotion. And, as you say, the tail is incomplete. We may find it is very flexible side to side and broad top to bottom. Time will tell, hopefully.
And no one still has a firm idea about the spines.Β I've read that the area that that spinosaurus lived in was prone to drought. Perhaps there was a rainy season where it could eat it's fill and develop a fat hump to store energy for the drought season. Similar to a camel, the spines would help support the hump. But like I said, my conjecture does not have years of field study behind it. Display and thermo regulation still seem to be the popular theories.
Thanks for the thoughts and comments.
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grisador In reply to adorety [2015-11-19 08:17:06 +0000 UTC]
Hey ! Did you heard about sigilmassasaurus return ?
The aegypticus might lived with another gigantic spinosauroid
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adorety In reply to grisador [2015-11-20 04:51:07 +0000 UTC]
I have not heard that! I'll look it up.
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grisador In reply to adorety [2015-11-23 20:51:22 +0000 UTC]
And also this ! The sigilmassasaurus isn't a synonym !
The 2014 reconstruction seems like a real mess....
peerj.com/articles/1323/
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adorety In reply to grisador [2015-11-25 02:15:36 +0000 UTC]
Thanks I'll check out this article when I have a chance.
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grisador In reply to adorety [2015-11-27 14:03:39 +0000 UTC]
You're y ! I recommend it
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grisador In reply to adorety [2015-04-25 09:36:45 +0000 UTC]
Δ°ndeed.
My thought is Amphibious Lifestyle (Lived Between Both Land and water, kinda explains why it get so big, it can change its habitat whenever it wants). Β Β Β
Only one thing is certain... We all have to wait for a complete Fossil; given the situation of funds that will take a Really long time
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adorety In reply to grisador [2015-04-26 01:23:36 +0000 UTC]
You are quite right, time will tell, hopefully!
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acepredator [2014-11-01 01:14:06 +0000 UTC]
This thing was physically incapable of using its arms for locomotion, no matter how short the legs are.
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adorety In reply to acepredator [2014-11-01 01:47:40 +0000 UTC]
That's what it seems to me too! They look like they might be good for holding slippery prey.
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acepredator In reply to adorety [2014-11-01 02:01:07 +0000 UTC]
What I meant was that on the rare occasions this thing was out of water, it would have walked like other theropods, even with short legs.
It could not knuckle walk without decapitating itself.
It seems the teeth are for holding while the claws were more for punching trough thick skin, feathers or scales, as well as ripping the prey apart to kill it.
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Saberrex In reply to acepredator [2014-11-27 19:01:27 +0000 UTC]
unless of course the furcula might have started becoming vestigial in Spinosaurus so that it could knuckle-walk. just a theory.
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acepredator In reply to Saberrex [2014-11-27 19:59:29 +0000 UTC]
Even then the arms aren't strong enough.
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Saberrex In reply to acepredator [2014-11-27 20:06:17 +0000 UTC]
Β until of course we get a better look at the muscle attachments. then, we'll know for certain.
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acepredator In reply to Saberrex [2014-11-27 20:12:17 +0000 UTC]
Yes, but until then I'm being conservative and believing this to be a relatively short but not tiny-legged bipedal aquatic predator.
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adorety In reply to acepredator [2014-11-01 05:06:41 +0000 UTC]
Yes. That is basically what I thought you meant. I agree.
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acepredator In reply to adorety [2014-11-01 13:26:41 +0000 UTC]
Thanks.
I can see this thing hunting smaller dinosaurs crocodile-style (though sauropods would be too big)
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Six-Kings [2014-10-28 23:49:11 +0000 UTC]
Great profile on this monster! As always, fabulous render! Β
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VincenAngellis [2014-10-28 16:07:23 +0000 UTC]
Since it was a large reptile, the sail was probably used for thermo-regulation. It could stay in deep water and still warm up to its desired temperature. Dimetrodon, edaphosaurus, etc were probably the same way.
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adorety In reply to VincenAngellis [2014-10-29 02:37:20 +0000 UTC]
Well, that may be, but from studies it is not a "sail". It has very tall neural spines and it is likely to be closer to a hump, possibly fatty. No one knows. Also it is not a reptile. It is a dinosaur and likely warm blooded. Dimetrodon and edaphosaurus are reptiles though and their sails may have been for thermo regulation. Thanks for the look.
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ForvenN20 [2014-10-28 09:52:12 +0000 UTC]
Not sure if you accidentally missed the double hump or made it fatty enough it deliberately isn't visible?
Either way, one of the nicest renditions of Spino I've seen yet!
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adorety In reply to ForvenN20 [2014-10-29 02:41:10 +0000 UTC]
I should have included credits for this, I will amend that. The model was made by Dinoraul some time ago before any current info, so the "double hump" was not created in his model. If I knew zbrush I could have altered that, but alas that is not yet one of my skills. It would not surprise me if he updates this model again or MNArtist and lmx3d offer a morph/fix soon. It will be interesting to see what he or they do with the back legs if they decide to update this model. Thanks for your input and comments.
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ForvenN20 In reply to adorety [2014-10-30 00:05:29 +0000 UTC]
After posting I actually thought that could be the reason. Hopefully the arguments about the limb measurements will be sorted soon! You're welcome
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adorety In reply to 62guy [2014-10-29 02:41:40 +0000 UTC]
In no uncertain terms! Especially at some 55 feet long!
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