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Steppe Rhinoceros v Tyrannosaurus rex
Topic Started: Feb 10 2012, 06:44 PM (33,460 Views)
Taipan
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Steppe Rhinoceros - Elasmotherium caucasicum
Elasmotherium ("Thin Plate Beast") is an extinct genus of giant rhinoceros endemic to Eurasia during the Late Pliocene through the Pleistocene, documented from 2.6 mya to as late as 50,000 years ago, possibly later, in the Late Pleistocene, an approximate span of slightly less than 2.6 million years. Three species are recognised. The best known, E. sibiricum was the size of a mammoth and is thought to have borne a large, thick horn on its forehead which was used for defense, attracting mates, driving away competitors, sweeping snow from the grass in winter and digging for water and plant roots. Like all rhinoceroses, elasmotheres were herbivorous. Unlike any others, its high-crowned molars were ever-growing. Its legs were longer than those of other rhinos and were designed for galloping, giving it a horse-like gait. The Russian paleontologists of the 19th century who discovered and named the initial fossils were influenced by ancient legends of a huge unicorn roaming the steppes of Siberia. To date no evidence either contradicts or confirms the possibility that Elasmotherium survived into legendary times. The most reconstructed species is perhaps E. sibiricum by generations of scientists working at the Paleontological Museum in Moscow and elsewhere in Russia. The majority of the fossils fall or have fallen within their national jurisdiction. The dimensions and morphology of the various reconstructions vary considerably. They are for the most part estimating the gross details from the minutiae. However, they all agree on the general order of magnitude, that sibiricum was comparable to a Mammoth and was rather larger than the contemporary Woolly Rhinoceros. E. sibiricum had a measured shoulder height of approximately 2 metres (6.6 ft). To it, however, must be added the height of a massive hump anchored on the fin-like transverse processes extending from the top of the cervical vertebrae, a maximum of 53 centimetres (1.74 ft). The total height then was in excess of 253 centimetres (8.30 ft). The measured length of sibiricum (from a nearly complete skeleton found at Gaevskaya) is 4.5 metres (15 ft). Extrapolation from the greater size of caucasicum molars obtains a length of 5 metres (16 ft)—5.2 metres (17 ft) for caucasicum. According to Legendre's formula, E. sibiricum had a mass of over 4,000 kilograms (3.9 long tons; 4.4 short tons); E. caucasicum, 5,000 kilograms (4.9 long tons; 5.5 short tons). These weights place Elasmotherium in the "really huge" category of all Rhinocerotidae and therefore the animal was "strongly brachyopodial;" that is, they required feet of large contact area to prevent sinking into the soil. The feet were unguligrade, the front larger than the rear: purely tridactyl on Digits II-IV in the rear, but with an extra vestigial digit, I, in the front.

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Tyrannosaurus rex
Tyrannosaurus is a genus of coelurosaurian theropod dinosaur. The species Tyrannosaurus rex (rex meaning "king" in Latin), commonly abbreviated to T. rex, is a fixture in popular culture. It lived throughout what is now western North America, with a much wider range than other tyrannosaurids. Fossils are found in a variety of rock formations dating to the Maastrichtian age of the upper Cretaceous Period, 67 to 65.5 million years ago. It was among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event. Like other tyrannosaurids, Tyrannosaurus was a bipedal carnivore with a massive skull balanced by a long, heavy tail. Relative to the large and powerful hindlimbs, Tyrannosaurus forelimbs were small, though unusually powerful for their size, and bore two clawed digits. Although other theropods rivaled or exceeded Tyrannosaurus rex in size, it was the largest known tyrannosaurid and one of the largest known land predators. By far the largest carnivore in its environment, Tyrannosaurus rex may have been an apex predator, preying upon hadrosaurs and ceratopsians, although some experts have suggested it was primarily a scavenger. The debate over Tyrannosaurus as apex predator or scavenger is among the longest running in paleontology. Tyrannosaurus rex was one of the largest land carnivores of all time; the largest complete specimen, FMNH PR2081 ("Sue"), measured 12.8 metres (42 ft) long, and was 4.0 metres (13.1 ft) tall at the hips. Mass estimates have varied widely over the years, from more than 7.2 metric tons (7.9 short tons), to less than 4.5 metric tons (5.0 short tons), with most modern estimates ranging between 5.4 and 6.8 metric tons (6.0 and 7.5 short tons). Packard et al. (2009) tested dinosaur mass estimation procedures on elephants and concluded that dinosaur estimations are flawed and produce over-estimations; thus, the weight of Tyrannosaurus could be much less than usually estimated. Other estimations have concluded that the largest known Tyrannosaurus specimens had a weight exceeding 9 tonnes.

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Prehistoric Cat
Feb 10 2012, 01:07 AM
Tyrannosaurus Rex v Elasmotherium Caucasicum
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Sleipnir
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A rhino's horn is made of keratin, which is the same substance that composes human nail and hair. If a tyrannosaurus has a BONE-CRUSHING bite, what is stopping it from crushing that horn?
T. rex bite can crush bone, let alone a keratin horn.
Edited by Sleipnir, Oct 19 2014, 07:11 AM.
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Grimace
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Equus Avis Prime
Oct 19 2014, 07:10 AM
A rhino's horn is made of keratin, which is the same substance that composes human nail and hair. If a tyrannosaurus has a BONE-CRUSHING bite, what is stopping it from crushing that horn?
T. rex bite can crush bone, let alone a keratin horn.
Have fun grabbing that horn.
Thats like fighting a guy with a sword while you're trying to grab it with a huge pair of bolt cutters.
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Tyrant
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There is actually fossil evidence of t.rex catching triceratops horns and breaking them. This rhino's horn appears to be much larger and should be that much easier to grab.
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Ausar
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^^>Because a rhino's horn can be wielded like a sword in a human's hands. Granted, neither is a tyrannosaurid's head/neck a set of bolt cutters wielded by human hands, but nonetheless that wasn't really a good way to put it.

Furthermore, while I'm not at all insinuating that horn-biting is going to be a tactic Tyrannosaurus will utilize here (or at least a chief, offense-oriented one), as Tyrant said, there's an actual Triceratops orbital horn that was bitten in half by a Tyrannosaurus' jaws (IIRC, the latter was trying to defend itself from being gored), so "catching"* a horn (*implying the T.rex is on the offensive in an attempt to grab the horn, when in the one case that it happened, the predator was most likely trying to defend itself) isn't an issue. Granted there are signs of healing on the Triceratops' horn, so it obviously survived the encounter, hence the T.rex failed. However, I do want to say that if by some chance there's ever a scenario where the same thing happens here, then the rhino would lose its only weapon. This is a fight to the death, so fleeing (which for all we know the Trike could have done) isn't exactly an option. And fighting back with a remaining horn (which for all we know the Trike could have done) certainly isn't an option.

In any case, if the rhino isn't quite as big as initally stated (I believe the explanation was given earlier), then there's no need to waste time grabbing that horn in the first place. Tyrannosaurus wouldn't lose to a herbivore smaller than itself (and certainly not one with perhaps questionable weaponry at the same time).
Edited by Ausar, Mar 13 2015, 05:14 AM.
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7574
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T rex win weight large teeth bite force
Rhino more muscular
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ffejgao995
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Rhino sandwich tastes good. YUM!
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Wombatman
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I voted Elasmotherium. Tyrannosaurus could kill similar sized elephants but Elasmotherium horn is very well placed.
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Sleipnir
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Grimace
Oct 19 2014, 08:04 AM
Equus Avis Prime
Oct 19 2014, 07:10 AM
A rhino's horn is made of keratin, which is the same substance that composes human nail and hair. If a tyrannosaurus has a BONE-CRUSHING bite, what is stopping it from crushing that horn?
T. rex bite can crush bone, let alone a keratin horn.
Have fun grabbing that horn.
Thats like fighting a guy with a sword while you're trying to grab it with a huge pair of bolt cutters.
¿Que el infierno?

Fine, it's a nice sword. But it's more like fighting that guy with both of his arms broken.

Please don't argue, you already appear to be a disappointment, do yourself a favor and don't prove it.
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Ceratodromeus
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Quote:
 
Please don't argue, you already appear to be a disappointment, do yourself a favor and don't prove it.

lol that's ironic. How about you come up with a cohesive argument instead of just insulting somebody?
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Sleipnir
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Ceratodromeus
Mar 11 2015, 12:47 PM
Quote:
 
Please don't argue, you already appear to be a disappointment, do yourself a favor and don't prove it.

lol that's ironic. How about you come up with a cohesive argument instead of just insulting somebody?
A cohesive argument.

Why argue about his stupidity?

Plus, I'm sleepy. And I'm nowhere located in the Northern Hemisphere.

Good night.

EDIT: Northeastern Hemisphere. Sorry.
Edited by Sleipnir, Mar 11 2015, 01:05 PM.
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Ceratodromeus
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Wrong word choice, but whatever.
There's no point in trying to argue with a post 5 months old, that's just dumb.
Edited by Ceratodromeus, Mar 11 2015, 01:05 PM.
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Sleipnir
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Ceratodromeus
Mar 11 2015, 01:04 PM
Wrong word choice, but whatever.
There's no point in trying to argue with a post 5 months old, that's just dumb.
Not thinking straight. Forgot to look at date. Has to do with 20' something age. But Grimace's rubbish fill me up with rage!
Edited by Sleipnir, Mar 11 2015, 01:07 PM.
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sharkomatic
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As others have rightfully pointed out, Elasmotherium had never encountered predators anywhere near the size of that of a Tyrannosaurus Rex. Sue, the largest T. Rex specimen found to date, weighed 6.4 metric tons, measures 42 feet long from head to tail and stands about 13 feet tall at the hips. Elasmotherium weighed approximately 4-5 tons. While Elasmotherium could potentially win by charging, it would not stand a chance were the Tyrannosaurus to attack from behind.

I'm giving this to the T. Rex.
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Spartan
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I thought Sue was 8 tons?
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blaze
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It most likely is, ~6t estimates for it are based on less accurate reconstructions (Greg Paul's) and equations (Anderson's) than what we have today.
Edited by blaze, Mar 25 2015, 07:52 AM.
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