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| Spinosaurus aegyptiacus v Tyrannosaurus rex | |
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| Tweet Topic Started: Jan 7 2012, 02:16 AM (459,242 Views) | |
| Wolf Eagle | Jan 7 2012, 02:16 AM Post #1 |
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M E G A P H Y S E T E R
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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.[1] 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. ![]() Spinosaurus aegyptiacus Spinosaurus is a genus of theropod dinosaur which lived in what is now North Africa, from the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago. Spinosaurus may be the largest of all known carnivorous dinosaurs, even larger than Tyrannosaurus and Giganotosaurus. Estimates published in 2005 and 2007 suggest that it was 12.6 to 18 metres (41 to 59 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weight. The skull of Spinosaurus was long and narrow like that of a modern crocodilian. Spinosaurus is thought to have eaten fish; evidence suggests that it lived both on land and in water like a modern crocodilian. The distinctive spines of Spinosaurus, which were long extensions of the vertebrae, grew to at least 1.65 meters (5.4 ft) long and were likely to have had skin connecting them, forming a sail-like structure, although some authors have suggested that the spines were covered in fat and formed a hump. Multiple functions have been put forward for this structure, including thermoregulation and display. Dal Sasso et al. (2005) assumed that Spinosaurus and Suchomimus had the same body proportions in relation to their skull lengths, and thereby calculated that Spinosaurus was 16 to 18 meters (52 to 59 ft) in length and 7 to 9 tonnes (7.7 to 9.9 short tons) in weight. The Dal Sasso et al. estimates were criticized because the skull length estimate was uncertain, and (assuming that body mass increases as the cube of body length) scaling Suchomimus which was 11 meters (36 ft) long and 3.8 tonnes (4.2 short tons) in mass to the range of estimated lengths of Spinosaurus would produce an estimated body mass of 11.7 to 16.7 tonnes (12.9 to 18.4 short tons).
Edited by Taipan, Apr 24 2015, 10:10 PM.
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| Replies: | |
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| SpinoInWonderland | Feb 11 2013, 12:55 PM Post #2086 |
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The madness has come back...
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Not to mention that the documentary that started the "broken spines = instant death" thing also depicted Spinosaurus as a super-dinosaur...
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| Carcharadon | Feb 11 2013, 12:58 PM Post #2087 |
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Shark Toothed Reptile
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^ Lol i do not even need to say what that documentary is. |
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| dinosaur | Feb 11 2013, 01:44 PM Post #2088 |
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Heterotrophic Organism
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Even if u ignore me, I want u to understand this. YOU DON'T KNOW WHAT'S POWERFUL! |
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| dinosaur | Feb 11 2013, 03:12 PM Post #2089 |
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Heterotrophic Organism
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Well at least I'm not called a moronic imbecil like some people called u!! I got that from a website called brolyeuphyfusion is an idiot Or something. And someone said, get banned u pile of shit Or something!! In that case, u are the one who's biased! |
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| Fishfreak | Feb 11 2013, 03:21 PM Post #2090 |
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Friend of the fish
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I said weaker not weak. |
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| SpinoInWonderland | Feb 11 2013, 10:21 PM Post #2091 |
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The madness has come back...
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That's a new low for you. You are believing in the bs that butthurt fanboys say about me. And I was the one who told the one who made that thread to get banned, not the other way around! You are twisting what you find to fit your biased view! You are the one biased, this is why people ignore you, you can't even accept the reality that Tyrannosaurus is not a supernatural creature... |
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| Fishfreak | Feb 11 2013, 10:50 PM Post #2092 |
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Friend of the fish
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ignore him broly, he's not worth it. Don't feed the troll, we ALL know his bias is far beyond yours, you have A BIT of bias, but don't we all? My point people respect you currently (not a few months ago though), and we all know dinosaur is a biased troll. It's a waste of time and energy to reason with him. |
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| SpinoInWonderland | Feb 11 2013, 11:14 PM Post #2093 |
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The madness has come back...
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I currently have him on ignore, but I've seen that post while browsing as a guest, and felt that such a personal attack cannot go unchallenged. |
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| dinosaur | Feb 11 2013, 11:45 PM Post #2094 |
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Heterotrophic Organism
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Tyrannosaurus is no match for Amphlicoelias Argentinosaurus Apatosaurus Of course he's not supernatural |
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| Fishfreak | Feb 12 2013, 12:43 AM Post #2095 |
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Friend of the fish
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you still overrate it... |
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| Jinfengopteryx | Feb 12 2013, 12:49 AM Post #2096 |
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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Yay!!! Where is that website? Also dinosaur, please stop with that flame war and rather back up your arguments, this has already filled enough pages in that therad! (tough that's still much better than pornography…) Edited by Jinfengopteryx, Feb 12 2013, 12:50 AM.
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| Fishfreak | Feb 12 2013, 12:51 AM Post #2097 |
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Friend of the fish
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can't post a link as it's another forum, but type up "Brolyeuphyfusion" on google and its the first link. |
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| Jinfengopteryx | Feb 12 2013, 12:56 AM Post #2098 |
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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I see broly's reply got much more thumbs up than the OP comment. Seems like the majority doesn't agree with that guy. |
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| dinosaur | Feb 12 2013, 01:11 AM Post #2099 |
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Heterotrophic Organism
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That's exactly how I found it. |
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| Fishfreak | Feb 12 2013, 01:33 AM Post #2100 |
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Friend of the fish
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Hahahahaha didn't notice, the guy who started that thread seemed like a mean idiot anyway. |
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