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T-Reqs — Masiakasaurus
Published: 2013-10-17 01:53:20 +0000 UTC; Views: 2585; Favourites: 68; Downloads: 0
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Description
Tried out a new art style kinda thing. Did this as practice. Took ~an hour or so. Really love this particular dinosaur- wish I saw it around in media a lot more. No real references used, just glanced at a drawing of one and did the rest from memory.Related content
Comments: 105
Masiakasaurus knopfleri. Found in 2001 in Madagascar. Small therapod ranging from six to seven feet. Diet: small vertebrates or fish. Late Cretaceous period. Named after Mark Knopfler. Cool pic man.
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This is wierd and more wicked Turkey Vulture-like, I like it!
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AMAZIGN Hey, this COULD be th new dinosaur thats to appear in Jurassic world. [why universe never hired you beats me still]
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I doubt this is the new dino in the new film. These guys are said to feed on fish. Most likely they will use some type of raptor or small carnosaur. Maybe even one that does not exist. This guy looks wicked enough with those teeth so it is a nice thought.
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well all i know is that A] this new dino esxisted and B] i thoguth ti looked liek it but i;m no vino expwct/
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Thats cool. All i know is that this time the T Rex will have its revenge and be the king again.
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I Hope Rexina coems back and rises agian. shes: www.youtube.com/watch?v=zU_aZQ… a big Matha F@#ker T-Rex :3
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What needs to happen is they need to have a rematch between the rex and the spino and have the rex win like it would in reality. CRUSHING THE SPINOS NECK IN ONE BITE!
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No. there is no way in hell the tyrannosaur could overwhelm a predator that had to deal with much more formidable opponents (crocodiles) and is tiwce its own size.
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Have you seen the cross section of the Spino's skull compared to a Rex? The Rex has the stroger head. And a Spino could not even use it on the rex because of the rex's mass. A spino's arms are it's only real weopan against another predator. But against a super predator like the Rex or Gigantosaurus, it does not stand a chance. Sarcosuchus are the largest crocs to ever live and they frequently fed on Spino meat.. Spinosaurus is around 55 feet long. T Rex 40 42 feet long. And size does not always mean victory. Pound for pound, the Rex is the absolute brute of the therapods. With a bite that can kill in one go, a skull that can be used as a sledge hammer and a ram, a short and very strong neck, small but strong arms, and very robust teeth designed to penetrate bone. the Rex was built to kill very powerful and dangerous opponents. The Spinosaurus has a average neck length, long thin skull with relatively weak teeth designed to hold fish, large arms, and a friggin sail. That sail is a deadly weakness because those spines connect to the vertebrae, so if it gets knocked down and rolls, those elongated spines will stop while the rest of the body continues to roll, breaking its back. The Rex only has one major flaw that is not that bad. It has to fall on its side to avoid breaking its jaw because if it falls straight forward, those arms are not strong enough to catch itself. All the Rex has to do is ram the Spino in the side or legs, knock it over and the Spino is history. Bites the leg or the neck, the Spino is history. The Rex's head is so massive it actually can block the Spino's arms from slashing it's throat open. Bite the arms off and the Spino is just a walking mouth. Size is not always everything in the animal world. Size only matters if you are ten times bigger than your opponent. And here is a modern example. Wolverines have been known to chase off grizzly bears. And the bear is bigger than us, but we are bigger than the wolverine. Most of the time it is power, numbers, or even power and numbers that determine the victor. And the Spino was not as strong as most people think.
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The spines may break but that wouldn't be fatal (it would be the size of the animal that kills it)
Its head is built like a croc. crocs have even stronger bites.
T. rex cannot bite the neck of Spinosaurus because it is too high. And it cannot bite anywhere else because its jaws do not open wide enough.
Spinosaurus was up against giant crocodiles and 3-ton dinosaur eating fish with bulletproof armor. It had to be able to kill and eat other apex predators.
All of your logic is flawed. Spino wins 10/10 with a huge size advantage, superior weapons, and ability to take on other predators.
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Have you even looked at the skull? Pales in comparison to a Rex. I have had conversations with some major paleontologists and they agree that the Rex is built more for heavy fighting. And the height issue that you and other keep bringing up is flawed. Spino's head stood only several feet above the Rex's. That is not that much of a difference and is still within the bite zone. And crocs are doubtful to have the strongest recorded bite due to the many tests that have yielded vastly different results.. The rex does. The estuarine or saltwater crocodile has a bite force of 3 to 5000. The Rex maxes out at 9000+ pounds per square inch. However, even higher estimates were made by professor Mason B. Meers of the University of Tampa in 2003. In his study, Meers estimated a possible bite force of around 183000 to 235000 newtons or 18.3 to 23.5 metric tons; a bite force equivalent to that of the largest Megalodon shark specimens. Those teeth are meant to puncture bone and shatter it, allowing the Rex to take a bigger bite out of another animal. That head is literally the most powerful skull ever designed by nature. Now ancient crocs are different story. But the Spino is not that strong. It primarily ate fish, and smaller coastal animals. The thickness of its skull is smaller than that of the Rex, which means it is not meant to hold onto very powerful prey. And those spines wont break at the base. They will stop and rotate the vertebrae they are attached to, twisting the spine till it breaks. Tyrannosaurus teeth are amongst the largest ever known, measuring 30cm (12in) long including the root. In fact they were the size and shape of a banana - a lethal banana. T. rex jaws were powerful enough to crush bone and extract bone marrow and could open up to 1m wide.And T Rex can open wide enough to bite the rump of a Triceratops. That is rather wide, and wide enough to bite the leg of a Spino.
The skull of Spinosaurus had a narrow snout filled with straight conical teeth that lacked serrations. There were six or seven teeth on each side of the very front of the upper jaw, in the premaxillae and another twelve in both maxillae behind them. The second and third teeth on each side were noticeably larger than the rest of the teeth in the premaxillae, creating a space between them and the large teeth in the anterior maxilla; large teeth in the lower jaw faced this space. The very tip of the snout holding those few large anterior teeth was expanded, and a small crest was present in front of the eyes. Using the dimensions of three specimens known as MSNM V4047, UCPC-2, and BSP 1912 VIII 19, and assuming that the postorbital part of the skull of MSNM V4047 had a shape similar to the postorbital part of the skull of Irritator, Dal Sasso et al. (2005) estimated that the skull of Spinosaurus was 1.75 meters (5.7 ft) long. The Dal Sasso et al. skull length estimate was questioned because skull shapes can vary across spinosaurid species.
A newly made study performed by scientists Andrew R. Cuff and Emily Rayfield showed that Spinosaurids like Spinosaurus had relatively poor resistance in their skulls for torsion compared to other members of this group (Baryonyx) and modern alligators, thus showing Spinosaurus preyed more regularly on fish than it did on land animals, although considered predators of the former too. This all means Spinosaurus's skull was far to weak to wrestle with any large predator. And name those giant dino eating fish that lived in the early cretaceous.
And like i said before, the Rex is more muscled to take on powerful animals. The Spino was not that powerful. It was a coastal predator that fed on fish or smaller manageable animals it found.
I wanna know were you got your idea that Spinosaurus is a super predator when all evidence points it to being an oversized fisher.
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The fish it ate were HUGE ARMOR PLATED DINOSAUR EATING RIVER MONSTERS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Spinosaurus is better at handling dangerous opponents.
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Really? Then tell me the names of said fish.
And tell me how it would kill a Triceratops. Or even the Rex itself. Like i said. The majority of the paleontological community agrees that the Rex was and still is the most powerfully built terrestrial carnivore to ever live.
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First of all in lb to lb killing power rex sucks even compared to some mammalian carnivores.
Mawsonia, Atractosteus, Oncopristis.
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Pound fer pound the Rex is just brutally strong. That head is the most terrifiying skull ever devised by nature. That neck is so powerful, it allows the Rex to not only use its skull as a ram and a hammer, but to tear off 500 pounds of flesh, that would just kill anything from blood loss if it around the size or smaller than the Rex. That much flesh removed would even kill the Spino. Actually start showing evidence in your arguments.
Mawsonia was several meters. Not tens of meters. That thing could only kill itty bitty dino's, harmless to a Spino and a Rex. That mouth is too small to harm a large dino.
ALLIGATOR GAR! are you a retard! those only eat what that mouth can handle, ie smaller prey. They can't even eat a human child.
Really? A soft bodied, cartilaginous giant sawfish? Even the Rex can kill it. Try again idiot.
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But gar have very strong armor that Spinosaurus had to punch through
Sawfish can survive croc and shark bites. You're the idiot here.
Rex's skull is the most terrifying? try Livyatan, Megalodonb, and Pliosaurus.
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Gar scales are tough yes, but they cant stop arrow fishers.
Those are not bigger than the sawfish.
A DAMN WHALE! that is not terrifying. Scale up a Rex skull and it can kill it.
you mean megaladon? Simple shark skull. All it is is an oversized great white. Not as complex as a T Rex skull. And i said land carnivore dip shit.
Pliosaurs don't have a skull that is so adapted to kill in a bone crushing bite. They bite and thrash. Which is what most carnivores do. All the Rex has to do is bite, crush and pull out. The T Rex skull is built to kill quickly.
The largest known Tyrannosaurus rex skulls measure up to five feet in length. Large fenestrae (openings) in the skull reduced weight and provided areas for muscle attachment, as in all carnivorous theropods. But in other respects Tyrannosaurus's skull was significantly different from those of large non-tyrannosaurid theropods. It was extremely wide at the rear but had a narrow snout, allowing unusually good binocular vision. The skull bones were massive and the nasals and some other bones were fused, preventing movement between them; but many were pneumatized (contained a "honeycomb" of tiny air spaces) which may have made the bones more flexible as well as lighter. These and other skull-strengthening features are part of the tyrannosaur trend towards an increasingly powerful bite, which easily surpassed that of all non-tyrannosaurids. The tip of the upper jaw was U-shaped (most non-tyrannosauroid carnivores had V-shaped upper jaws), which increased the amount of tissue and bone a tyrannosaur could rip out with one bite.
A 2012 study by scientists Karl Bates and Peter Falkingham suggested that the bite force of Tyrannosaurus could have been the strongest of any terrestrial animal that has ever lived. The calculations suggested that adult T. rex could have generated from 35000 to 57000 newtons of force in the back teeth, or the equivalent of three times the force estimated for a great white shark, 15 times the force of an African lion, 3 1/2 times the force of an Australian saltwater crocodile and around 7 times the estimated force for Allosaurus. However, even higher estimates were made by professor Mason B. Meers of the University of Tampa in 2003. In his study, Meers estimated a possible bite force of around 183000 to 235000 newtons or 18.3 to 23.5 metric tons; a bite force equivalent to that of the largest Megalodon shark specimens.
Now stop putting in fully aquatic animals. We are not talking about dead whales or sharks. We are talking dino's. And start giving more facts. Names don't help.
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because they are projectiles. You need an ax to cut into one.
That sawfish was a yearling at the time of the croc attack.
A rex that weighed 50-something tons would collapse from its own weight.
Pliosaurs have a bite force 7 times that of rex.
It does not matter how strong the bite is. dead is dead.
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Less energy spent on a kill means more energy conserved. If you can kill with one bite, you save alot of energy. To be a successful predator, you must kill with as little energy expended. It also helps avoid injury.
Spinosaurus used its giant claws to spear fish. It litterally thrusts its thumb claws into them with more force than an arrow, so your point is moot.
Sawfish grow to 20 feet these days. The ones from the cretaceous can hit 35 feet, are still smaller than the Spino. Much smaller. Like another 15 feet smaller.
Pliosaurs don't have a bite force that strong. Their skulls are not designed to crush bone. That amount of force would shatter their skull and their teeth, those teeth are just giant sharp pegs. That skull is built to hold on to something, then get shaken like a rag doll. Our view of Pliosaurus funkei is grossly incomplete. This oceanic hunter was big and terrifying, that’s beyond question, but the pliosaur fossils are not quite so big or spectacular. And despite early claims that Predator X had a bite force of over 15 tonnes per square inch, such figures are suspect when we don’t even know what the pliosaur’s complete skull looked like. No bite force analysis was included in the description. Furthermore, Knutsen and collaborators “urge caution in drawing far-reaching conclusions of pliosaur ecology and behaviour” based upon their study. Pliosaurus funkei must have been an apex predator with a devastating bite, but there’s apparently little more than can be said with confidence. So much for saying they have a stronger bite.
And i mentioned the scale up thing for mechanical reasons. Animals are just living organic machines. And scaling up the Rex's head gives it more power.
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Strong bites are not necessarily effective bites.
Lets look at sabertooth cats. their bite is weak but the effect is instant and devastating.
T. rex may have strong bites but that is not good enough for it to secure victory.
And any giant theropod can kill another with a neck bite.
PX would have a much larger bite force just from the fact it is 5 times as big.
If Rex was built for killing things much larger than itself, it has a chance. But the biggest things it could kill were its own size. Spinosaurus is twice the size of T.rex and is simply too big to be beaten. All your arguments are pointless.
Rex is 6 tons smaller and 20 feet shorter. there is no way in hell it can beat that without the ability to kill large prey, a skill it never had.
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Still have yet to tell me how Spino could kill a trike, which was one of the Rex's prey items.
Triceratops, Anatotitan, Anylosaurus, these are all very large prey, especially Anatotitan, which was the same size as the Rex, around 39 feet.
Spino was only ten feet longer, no firm evidence supports the 60 theory.
Not all giant theropods can kill with a neck bite. Spinosaurus for example.
Predator X is not the biggest carivore to ever live, nor was it close. Shastasaurus sikanniensis was the biggest at 70 feet. Predator X is around 45 to 50.
A bite that can crush the neck, remove so much flesh that it's prey bleeds out, is a damn powerful bite.
The Rex was built to kill very dangerous foes with minimal injury. Proven by it's powerful neck and that it still has the most powerful bite on record. It's bite around the neck of another animal can instantly crush the windpipe, puncture the jugular vein and the carotid artory, break the neck, and severe the spinal cord in one go. That is a faster more efficiant kill than the Smilodon's bite.
The sabertooh cat has a weakness in those teeth, they can't handle lateral stress, which will cause them to break. If they hit bone, those teeth will break. But the Rex's teeth have none of those weaknesses.
And guess what, the Rex fed on a sauropod that lived in North America in the same time slot. It was called Alamosaurus. It weighed more, was alot taller, but was still preyed upon.
The maximum size generally agreed upon by the paleontological community for Spinosaurus is 55 feet. T Rex was upgraded to 43 feet several years ago. Spinosaurus is around 25 feet tall at the head, 28 with the sail. T Rex is around 22 to 23 feet tall. Spinosaurus is just longer and barely taller than T Rex, Gigantosaurus, and Carcharadontasaurus. All three of which can kill Spinosaurus. Spinosaurus was primarily a fish eater, that scavenged carcasses, stranded pleisiosaurs, pliosaurs and other smaller marine animals. As i said before, it's arms were it's only weapon of defense. And those arms can't stop another T Rex from ramming it, bite the legs, and then wait for the spino to die of blood loss. Cause here is the final piece of evidence that says the Rex would win. The Rex had a more advanced brain and visual system. Being a carnivore that fed on super dangerous herbivores like triceratops and ankylosaurus, T Rex had to develop stratagies to get it's massive head in for the kill shot without getting hurt. And the fact that it had advanced depth perception, something Spinosaurus did not have, meant it could follow it's prey with both eyes, and in the prehistoric world, most animals did not have front facing eyes unless they were a major predator. In fact, out of all the super predators on land, T Rex had the best eyesight, the best sense of smell, and quite possibly, the best thought processes. Spinosaurus, being primarily a coastal predator that mostly ate fish, did not need forward facing eyes, since it could not see into the water, instead it had pressure sensor on it's snout to tell it when a fish was in range. It did not need to strategize on how to kill a dangerous prey item. It did not know what fish it was going to grab. And stranded aquatic animals were easy prey. Not to mention it's brain was not adapted to kill giant animals all the time. It knew how to use it's arms for defense and to scare off rivals with it's sail as an intimidation device but thats it. It was not built to fight super lethal foes, it was incapable of killing sarcosuchus, and it was not always able to stop other super predators from attacking and killing it.
T Rex on the other hand was BUILT for the fight. It fed on extremely dangerous prey, ones that could even make the Rex back off. Spino's neck is just within range of a killing bite. It is in range when the Rex head butt's the Spino in the side and the Spino did not even know it was there. The Rex is an ambush predator, it would sit in the shadows, waiting for an simple mistake from the Spino, ram the Spino in the side knocking it over and then finish it off with a bite to the neck. Spinosaurus could not see to an advanced degree, it's hearing was moderate, it's sense of smell was normal. It would not see the Rex coming. And if it did, it would not stop the Rex. Being and alpha predator, the Rex was capable of identifying it's foes weapons. It would see those arms and not care about the sail. It would then go for the legs to stay away from the arms. One bite and the removal of several hundred pounds of flesh later, and the spino is dying from blood loss. T Rex is the most terrifying terrestrial predator to ever live.
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Spinosaurus could kill with a neck bite.
I never said PX is the largest ocean predator. Megalodon is. However, it is still 25 tons. that alone is enough to completely crush rex in the biting department. (BTW, Shastasaurus ate only squid and had no teeth)
T. rex could not bleed out is prey. you need thin, cutting teeth not ripping teeth.
Which is my point. despite fragile teeth and a weak bite they can instantly kill.
T. rex did live with Alamosaurus but did not hunt the adults.
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So if you had a shark bite you in the back of your leg, removing a large amount of flesh, you won't die from blood loss? You don't shit.
T Rex can REMOVE five HUNDRED pounds of flesh in one bite. That is alot of arteries bitten through. It's like a toothless bear trap that was sharpened around the edges, allowing it to remove giant chunks of flesh. Even better analog is that T Rex's mouth does the same thing as a piranha, remove large chunks of flesh, preventing blood from clotting and bleeding out.
Spinosaurus's skull is not powerful enough to kill another land carnivore around the same size with a neck bite, it's teeth are not serrated, and it's mouth is not designed to remove flesh because of it's shape. You need a wide mouth to remove chunks of flesh from large prey items.
T Rex had a bite that could be stronger than Megaladon, both of them are the leaders in bite strength.
P X does not have that bite. Their is no evidence for it. I mentioned that already.
Shastasaurus is still a carnivore.
T Rex did feed on the adults. It would rush in, bite the leg, remove a huge chunk of flesh in one bite, and wait for blood loss to kill it. It's a frickin ambush predator. It will wait to attack at the right moment.
You are still not giving any evidence to support your theories.
Still have yet to tell me how Spino can kill a adult Triceratops.
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Everything you said is wrong.
So, because a crocodile eats fish and you eat meat you can easily kill a croc, as your logic says?
Bite force is NOT a good weapon unless the opponent has armor. what matters is the gape and sharpness of teeth, and Rex has neither.
it did not hunt adult sauropods because it couldn't even bite them, much less hit and run.
Same way a rex would, except with claws added in to make up for thinner teeth.
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Have you EVER watched nature shows were they showed nile crocs grabbing zebras and other animals at river edges? Those animals DIE when they get bit on the neck or head because their skulls are crushed by nearly four tons of bite force. A Rex bites with 10 to 20 tons. That is an instant kill on any animal that has a skull the Rex can get it's entire mouth on. Same with the neck.
"So, because a crocodile eats fish and you eat meat you can easily kill a croc, as your logic says?" where did that come from? If you mean when i said that wide mouths are better at removing flesh, then yes, but we don't have the jaw pressure and our teeth are not meant to crush bone. And crocs eat more than fish, that skull just makes it easier to help them catch fish.
Bite force is a good weapon. Think of a coconut as a skull, put it in our mouth, we can't crush it. Put it in a croc's mouth, and they can crush it. If you can crush the skull of your prey in a bite, that is a fast kill with little energy used. Very efficient.
The Rex had large banana shaped teeth that were serrated front and back. The roots are firmly in the skull to prevent breakage, and they are D shaped in cross section to help them punture bone. Combine that with a jaw pressure that exceeds 10-20 tons, those teeth exert a massive 20-40 tons at the tip's, that is a very effective weapon.
Triceratops have a large shield at the back of the skull to protect the neck. Spinosaurus can't get to it with its arms because of that and because as soon as it got close to try and pry it away, those giant horns on the triceratops skull would be in the Spino's chest, neck or belly, whichever got close. No predator except the raptors and the Rex could get past the Triceratops neck frill and horns. As soon as the Spino tried to grab the Trike, the Trike's head will swivel around and stab the Spino. T Rex can bite the frill or horns off, but even they still can die from Triceratops. They mainly get around it by ambushing, rushing and biting them in the back, keeping the Trike from turning, and then crush the back with it's powerful jaws. Spinosaurus can't do that, and it can't sever the spine with those claws, and not to mention, they are not very quiet on land, and can't maneuver that sail in a forest where most lone Trike live. Cause even a Rex avoids a herd of Triceratops. And if you even think the Spino can just pick one up, think again. Triceratops weighed 12 tons. Far more than those arms on Spinosaurus could lift. Spinosaurus is not built to handle such large prey. Now try Ankylosaurus.
Sawfish could not eat a dino, their mouth is not designed for it, they only eat food whole. Giant celocanth could only eat small dino's, ones under 10 feet. Gar don't have the mouth to eat a dino, if a adult Alligator gar can't eat a baby human, they can't eat a dino, they have to swallow their food whole, so if it is to big to fit down their throat, they don't eat it.
Their were giant Mosasaur's, but those lived in deep to medium water, not coastal water.
T Rex could reach the base of an Alamosaurus's neck. It could ram an adult in the leg. It could bite the leg and remove 150-200 pounds of flesh (since the side of a sauropod is almost flat it won't be able to remove 500 pounds), and wait for it to be weak enough to finish it off, as such a bite will a nasty wound and rage with infection.
You sound more like a fanboy than me. I am a fan of the Rex, but I am also a paleontologist. I have studied dinosaurs for 20+ years, graduated college with a degree in biology, zoology and paleontology. Everything you have tossed at me, i have proven wrong. So let me finish this for you.
Your so called giant dinosaur eating fish were not dinosaur eating fish. Only the celocanth came close, but it could not eat a full grown super predator only dinos smaller than 10 feet.
Spinosaurus had a croc shaped skull, but was not built like a croc's skull. It could not bite with more than 2 tons at most. The Rex on the other hand did, it had a skull built to withstand massive pressures to deliver the most powerful bite yet measured, to quickly kill it's prey. The amount of flesh removed would contain arteries, causing the animal to bleed to death. If bit on the neck, it was an instant kill as the 10-20 plus ton bite would crush the wind pipe, break the neck, severe the carotid artery and the jugular vein, and severe the spinal cord, in one bite. If the prey did not have an armored skull, that amount of force would crush the skull. For example, if the Rex bit down on an Anatotitan, it would be dead in one bite.
Spinosaurus generally ate fish, and it never knew what it was going to grab most of the time. It used the pressure sensors on the tip of it's snout to detect fish that were in range. If it found a large fish, it would use it's arms to grab the fish, then dig it's giant thumb into it to kill the fish. It then ate the fish in small bites to medium bites, because it's mouth could not remove more than 80-90 pounds of flesh at a time. Long narrow jaws do not allow massive chunks of flesh to be removed at one time. Nor does a skull that long, that narrow and that thin, allow it to handle huge amounts of stress. Crocodillians can handle it because the back of the head is considerably wider, it's skull is extremely thick and strong, and it has huge muscles that are so stiff and hard, they can be almost as hard as bone. Spinosaurus did not have that. It's skull is very long and narrow, with the back of the skull barely wider than the tip of the snout. The Rex has a deep skull that, like the croc, is thick, heavy, very strong and can handle huge amounts of stress. At the back of the head are muscle attachment points for incredibly powerful muscles. In fact, from a top down view, the similarities between a croc relative, the alligator, and the Rex, becomes apparent, narrow blunted snout, with the back of the head extremely wide. The only difference between skull mechanics is that the Rex has different teeth. The Rex has serrated teeth, with which it can slice through meat. Something crocodillians and Spinosaurus can't do, they have teeth meant to puncture and hold onto food, not slice. But even the teeth of crocs have more in common with the Rex than Spino. Both the Rex and croc's have D shaped, and deep rooted teeth to allow them to puncture bone. The reality is, the Rex skull is also similar to a croc's, it's just better. Which means it is better than the Spino's as well.
Spinosaurus has only one thing going for it, it's massive arms. But even those are useless since the Rex has another thing to help it beat Spinosaurus. A more advanced brain. Because the Rex battles dangerous prey, and competes with other predators, including it's own kind, it must be able to plan attacks. It must think of how to get around an enemies defenses, without hurting itself. Something the Spino almost never has to do. Even the Rex's eyesight is superior. Spinosaurus does not have binocular vision or night vision, the Rex does. The reason is because Spinosaurus is not a sight feeder, it does not care what it's mouth pulls out of the water. The Rex however slowly over millions of years, developed binocular vision and night vision, which only therapods that had to strategize complex attacks or work in packs had binocular vision and night vision. Which Spinosaurus did not need. All it had to do was stand in the shallows, stick his nose in, and when the pressure sensor's in it's snout sensed a fish, grab the fish. And if a giant croc attacked, it would not be able to stop it, because crocs are ambush predator's. They wait to move in for the attack. Spinosaurus steps into the water, crocs come in from the side and WHAM! Spinosaurus get bit on the neck or head, dying instantly. Gets bit on the arm and it gets dragged under water where it drowns.
As i said before, only two therapods could give a Rex a challenge. Gigantosaurus, and Charcharadontosaurus.
And the last nail in the coffin. NOT ENOUGH OF A SKELETON OF SPINOSAURUS HAS BEEN FOUND TO SAY IT WAS 18 TONS OR 60 FEET LONG! SAME WITH PREDATOR X! Safe estimate is 50-55 feet for both, with Spino being 14 tons, and Predator X being 20 tons in weight.
If you still don't believe it, then go and talk to another paleontologist. Just not Jack ass Horner.
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Spinosaurus is built like a croc and lived like a croc so should be able to pull the same feat off. It's bite force has been estimated at 3 tons- not as impressive as T. Rex or PX, but enough to kill in one bite.
banana shaped teeth cannot be serrated. In fact they are banana shaped because they aren't serrated. Therefore it could not perform the hit and run. Yes it has a phenomenal bite but it does not matter when you cannot bite your target in the first place.
Sawfish kill prey by cutting them with their rostrum so eat prey too big to fit in their mouths. And I meant sawfish and a giant Bicher (which death roll to dismantle prey) as Dino eating fish not gar.
Spinosaurus ate fish. But those fish were armor plated or thick skinned and weighed several tons. And it ate anything else in the water as well, including crocodiles, plesiosaurs and sharks.
We know a 55 foot Spinosaurus was a subadult so an adult has toe in the 10+ton range.
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They are not built the same. As i said, croc's have a long flat skull that is very wide at the back. That extreme width allows massive muscles to exert a bone crushing 5,000+ pound bite. To handle that, the skull is incredibly reinforced to withstand that force. Spinosaurus does not possess that. It's skull is too thin, their is not enough room for bone crushing muscle. It's neck is too long. All animals that have a bone crushing bite, have short necks, their skulls are thick and reinforced, and are considerably wider at the back than the tip of the skull.
Rex teeth are serrated. Look it up. They are serrated at the front and back. And the Rex can open it's mouth wide enough to bite the rump of a Trike.
HOW OLD ARE YOU!?
It could not eat a croc, croc's have a row of plates called scutes on their back. The ones on Sarcosuchus would have been several inches thick. Those would deflect all of Spinosaurus's attacks. They would deflect the claws, and break Spinosaurus's teeth. Not to mention a Sarcosuchus would see Spinosaurus before the Spino saw it.
Saw fish use the rostrum to stun and kill prey. Those teeth are not cutting teeth. It can't cut up food. Not to mention it's mouth is identical to stingrays. The giant bichir could not feed on a Spino, because they only grow to 9-10 feet. No fish were alive at that time that could eat or even harm Spinosaurus or T Rex.
The largest bones of Spinosaurus are from an adult. And they all point a range of 55 feet in length. There is no evidence to say they were subadults.
You are messing with an expert kid. Back off, study both of these dino and their habitats. All this shit you have tossed at me tells me that you are a child.
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Have you ever bothered to look at the Rex teeth? it is carnosaurs that have serrated teeth.
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I own a Rex tooth, and have you seen the photos of a Rex teeth? They are clearly visible. And not just carnosaurs have serrated teeth, carnotaurus, the raptors, coelophysis, most predatory therapods had serrated teeth. The Spinosaurs did not however as they and other fish eating dino's had no serrations
Admit it, you are a little child who just listens to idiots and does not truly study the field they are interested in.
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Spinosaurs don't have serrated teeth but neither do tyrannosaurs. both are better at gripping than ripping
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LOOK AT THE DAMN PHOTOS! T Rex have double serrations. Ask anyone who knows about dino's, and they will say they have serrations. Do your damn research. Seriously how stupid are you.
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No, you are the stupid one here.
Seriously, how can banana like teeth be serrated?
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It's the damn size of a banana for some of those teeth, the largest of all therapods. Kid, look it up before i f@$%ing post a photo of a tooth. The most accurate description is that they look like giant double serrated steak knives with a re-curved tip from the side. But the thickness of the teeth is why they are called banana shaped. The serrations run laterally, in long lines in vertical strips on the front and back of the teeth. Any tooth can become serrated. Even Smilodon had serrations. And those teeth are even more banana like in shape. Like i said kid, i studied paleontology for 20+ years. I have a damn degree in it. I am an expert in this field. And by the fact that you have not even looked at a Rex tooth, or even studied the skulls of a Rex, Spino or a croc, I can tell you are a immature novice.
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Yes but sabertoothed had thin blade-like teeth not stout crunching teeth.
Are you sure you actually have a t.rex tooth?
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Smilodon teeth were not thin. They were thicker than most of it's other teeth. Thin teeth that size are useless. They would not be able to withstand any amount of force. They were around 3/4 to a full inch thick to compensate for the extreme length. But blade like they were, as they had to cut through the flesh very quickly so it could pull out and back off while it's prey bled to death.
Let's see, whole thing is over a foot, very long and straight root, d shaped cross section, DOUBLE serrations, yeah it's a Rex tooth. No therapod had teeth this big. Got it in the Hell creek formation searching for Rex skeleton's with a team of paleontologists two years ago, had to go through some legal channels to keep it, ie i bought it for 150 dollars. T Rex had the largest teeth of any terrestrial animal. Those teeth were serrated to allow it to feed on it's prey.
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it is only half a foot long (although still the longest teeth on a land predator), round in cross section, recurved, and sharp at only the point. and in any case its jaws do not open wide enough for it to attack a very large animal especially from the sides. even with the shorter legs (and they are not that short as in the reconstruction as the numbers are wrong) Spino's sail/crest is too high to allow rex to bite through the back, and the jaws aren't wide enough to attack the flanks. the only target is the neck, in which both sides have deadly bites but one has size, power and weapons on its advantage.
www.boneclones.com/images/ko-0…
don't see serrations.
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Bad photo kid, it only shows the top view, you can't even see the serrations from there.
T REX TOOTH, T REX TEETH, T REX FOSSIL, TYRANNOSAURUS TEETH ...
You are supposed to include the root of the tooth for total length. The biggest Rex teeth can exceed 12 inches in total length.
T Rex can open it's mouth wide enough to get it's mouth completely around the back of a Trike. We have fossil evidence of this. A hip bone bore the bite marks of a Rex. That means it can open it's mouth wide enough to wrap it's jaws around the neck of Spinosaurus. One bite to the neck will kill the Spino. But Spin can't kill the Rex with a neck bite as it lacks the power to do so, and if it tries to hold on, the Rex will break the Spino's jaw when it tries to shake off the Spino.
Spino's arms are it's only weapon against another super predator. But all it can do is slash. And if it tries to slash at the Rex's throat, the Rex will bite down on the arms and crush them or even rip them off. But if it does slash the Rex's throat, it won't do much, that neck is thick with muscle that is almost as hard as bone. Plus, most therapods don't have good wrist movement, only raptor like dino's had full motion wrists, so Spinosaurus would have a difficult time to slash open the Rex's throat, which means it's best weapon is near useless.
And like I said before, size does not always mean you are invincible. Gigantosaurus can kill an adult Argantinasaurus, one of the biggest animals of all time. It's all about brain power and weapons. And the Rex beats the Spino in both departments.
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First of all, brain size is not a good indication of intelligence-otherwise elephants and whales would be super stupid animals.
second of all, Spinosaurus is a much bigger thing to bite on
as for the height advantage, the quadrupedal versions were wrong, and even with the shorter legs both theropods were the same height.
Both have lethal bites. Both could easily bite another's head off with the force alone (crocodiles can disembowel zebra with one bite so why not a spinosaur?). But one has arms and a gargantuan size advantage to add to the mix.
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Wrong again. The bigger an object and the thicker it is, the more force is required to cut in half in a bite. Spinosaurus would need at least a 4 ton bite, with which it did not have, to bite through the Rex's thick neck, which was twice as thick as Spino's neck.
Did not say the Rex's brain was bigger, said it was more advanced. T Rex was an active hunter of dangerous prey. So it had to stratagize on how to avoid the defense of it's prey.
Said before, croc skulls are different in construction. Just because they look the same, does not mean they act the same. Scale up a croc skull and compare it to a Spino, and they look the same but their are serious differences. Spino has a thin skull while the croc has a thick skull. The croc needs that thicker skull to absorb dangerous amounts of pressure that the bite creates, otherwise it's jaw would break. The croc skull is wider to accomadate massive muscles that allow it to emit such a bite, and the neck is thick with those same muscles and short as well to allow it to reduce damage from thrashing around to kill it's prey. The Spino has a narrow and long neck, the back of the skull is only just wider than the tip, so their is no room for giant armor crushing muscles. In fact, croc skulls and Rex skulls, while not visually similar, operate in a very similar way.
Those arms don't have good wrist movement so they are pretty much useless for grabbing the Rex.
Spino is only longer and slightly heavier, not that much bigger in terms of mass and strength.
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Spino is twice as heavy.
Have you heard of the false gharial? it is a croc with a thin skull but still kills deer and even humans.
Cannot say that rex's brain is more advanced (it was bigger but that is irrevelent)
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Only one human death has been confirmed, at that animal did not act alone. False Gharial can only manage killing prey near their size by the same tactic as other crocs, bite and drag prey into the water. It did not kill him in one bite, they actually have rather weak bites compared to other crocodilians. And where they live, adults must feed on larger prey items since fish are not big enough. Crocodilians have a different feeding strategy for land targets. They drag them into the water to drown them. Spinosaurus did not do this. Its skull was also still vastly different. And the deer False Gharial are mostly the small deer, muntjac, mouse deer, it never eats sumbar deer, which are far to large. The one that ate the fisherman was the largest False Gharial ever caught, at 16 feet, where humans are then on the menu, even then, it had help. False Gharial are not built to take prey the near, larger or the same size. They are built to take on prey less than half their size. Same with Spino, it was built to take on smaller prey, primarily fish, stranded pliesiasaurs, and other easy prey.
The Rex had advanced vision. It could see in color, at night, and overall was better than a humans. The part of the Rex's brain devoted to thought and strategy was very advanced for a super predator. And it needed to be since it regularly fought dangerous prey. And only very serious predators have those qualities. Even most croc species have them. Spinosaurus did not have them.
No evidence suggests Spino was twice the weight. It was less bulky overall, that sail only added maybe 200 pounds, did not stand much taller, it only weighed 20 30% more than a Rex. If T Rex was 9 tons, Spino was 11 to 13 tons. Saying it was 18 tons when it was rather lightly built says it was a fat dino, or its maximum was 60 to 65 feet and its head was 30 feet above ground,with which no evidence exists to say it was that long and its height was around the Rex's or slightly taller.
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Spinosaurus was 12 tons. Rex was 5-6 tons at best.
that wasn't even a adult male Gharial that ate the person. And it was working alone. And it eats large deer and not just small game. This is nothing like the Indian Gharial that you seem to be thinking about. This is more like a saltwater crocodile or Spinosaurus in behavior.
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It was an adult female 50 years old and 16 feet long. And it was a Kalimantan fisherman that was killed. I read the report. You should too. The sambar deer are too large at 500 pounds plus, and have been known to weigh half a ton, when the average length of adult male False Gharial's is 13 feet and just over 400 pounds. Sambar are the largest deer in the False Gharial's range. The other deer are smaller than we are. No large game has been found in the stomach of a False Gharial. We are medium to small game for adults over 13 feet.
T Rex has an official weight range of 7-9 tons. Spinosaurus weight is harder too determine, but generally agreed to be around 12, but that means it is not much heavier than the Rex. In fact, recent studies suggest that because Spinosaurus was not as muscled down as the Rex, it probably weighed the same. T Rex was very muscular too allow it to combat dangerous prey, while Spinosaurus was not since it mostly ate fish and other animals that could not harm it.
Quit fighting logic punk. I have dis-proven everything you have tossed at me with cold hard facts. Look it all up, the facts exist whether you like it or not, and experts like me are the ones discovered those facts. Stupid little kid. Grow up, study, and learn to give out real scientific facts before you post anything to prove someone wrong in the scientific community. So deal with it, and blame JP 3 for giving you a false king of the dinosaurs. Even Jack Horner is rethinking his ideas of T Rex, a man who for years said the Rex was a scavenger. More facts have come to light and they still say, T Rex was the most powerful and dangerous terrestrial carnivore on the planet, not the biggest, just the most powerful. And in the time of the dinosaurs, size was not the only factor for predators, it was power and intelligence that also determined who was best. And of all the giant therapods, T Rex had all but one, and that one was not that important when its only shorter by a few feet. The most logical size of Spinosaurus is 50-55 feet long, 15 feet tall at the hip, weight of 11 to 13 tons. T Rex is 40-43 feet long, 13 feet tall at the hip, with a weight of 7-9 tons. Gigantosaurus is 42-43 feet long, 14 feet in height, weight of 10-11 tons. Charcharodontosaurus was 39-42 feet long, height about the same as the Rex, weight around 9-11 tons. Other than the longer length, Spino is not much bigger than all three of these giants. But out of these four, only one had more power, and the more advanced brain. In fact, T Rex had the most advanced brain for a therapod bigger than 20 feet. Superior sense of smell, sight and hearing, as well as the ability to plan attacks. Hell, their is evidence to support the Rex actually being a pack hunter. And we all know pack hunters are very intelligent and lethal, even on their own. Its eyesight was superior to an eagles. It's sense of smell was stronger than a vulture's. It could hear low frequencies which most therapods could not do. And it's ability to stratagize was higher than any super predator. Which means that it could easily out think Spinosaurus. So piss off runt, you are out of your league here.
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