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| Austroraptor cabazai v Utahraptor ostrommaysorum | |
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| Tweet Topic Started: Feb 6 2012, 07:12 PM (9,136 Views) | |
| Taipan | Feb 6 2012, 07:12 PM Post #1 |
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Administrator
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Utahraptor ostrommaysorum Utahraptor (meaning "Utah's predator" or "Utah thief") is a genus of theropod dinosaurs, including the largest known members of the family Dromaeosauridae. Fossil specimens date to the upper Barremian stage of the early Cretaceous period (in rock strata dated to 126 ± 2.5 million years ago). It contains a single species, Utahraptor ostrommaysorum. The holotype specimen of Utahraptor is fragmentary, consisting of skull fragments, a tibia, claws and some caudal (tail) vertebra. These few elements suggest an animal about twice the size of Deinonychus. Like other dromaeosaurids, Utahraptor had large curved claws on their second toes. One claw specimen is preserved at 22 centimetres (8.7 in) in length and is thought to reach 24 centimetres (9.4 in) restored. The largest described U. ostrommaysorum specimens are estimated to have reached up to 7 m (23 ft) long and somewhat less than 500 kg (1,100 lb) in weight, comparable to a grizzly bear in size. Some undescribed specimens in the BYU collections may have reached up to 11 m (36 ft) long, though these await more detailed study. Austroraptor cabazai Austroraptor ("Southern thief") was a genus of dromaeosaurid dinosaur that lived about 70 million years ago during the Cretaceous period in what is now modern Argentina. The type species for the genus, Austroraptor cabazai, was described in late 2008 by Fernando Novas of the Museo Argentino de Ciencias Naturales. The fossil specimen was discovered in the Late Cretaceous deposits located in the Río Negro Province of Argentina. The species was named in honor of Alberto Cabaza, who founded the Museo Municipal de Lamarque where the specimen was partially studied. Considered large for a dromaeosaur, Austroraptor cabazai measured around 5 metres (16 ft) in length from head to tail. It is the largest dromaeosaur to be discovered in the Southern Hemisphere. Particularly notable about the taxon were its relatively short forearms, much shorter in proportion compared to those of other members of its family. The relative length of its arms has caused Austroraptor to be compared to another, more famous short-armed dinosaur, Tyrannosaurus. Weight: 365 kg (810 lbs). ![]() ____________________________________________________________________________
Edited by Taipan, Dec 6 2013, 09:42 PM.
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| Naronu | Apr 2 2014, 07:19 AM Post #46 |
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Apex Predator
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I was agreeing with you about the robusity of Utahraptor I was just saying that Achillobator or another closely related raptor would be close in terms of robusity |
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| thesporerex | Apr 2 2014, 09:13 AM Post #47 |
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Kleptoparasite
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Lol mismatch infavour of utahraptor, Utahraptor is superior in almost every single catagory. |
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| Soopairik | Oct 16 2017, 08:54 AM Post #48 |
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Carnoferox's sex toy
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Utahraptor is like a direct upgrade from the other. It wins easy. |
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| GallirallusAustralis | Oct 23 2017, 04:10 AM Post #49 |
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Autotrophic Organism
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Utahraptor is stronger, smarter and faster. It would win. |
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| Thalassophoneus | Oct 23 2017, 06:04 AM Post #50 |
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Pelagic Killer
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I understand stronger, but where did the other two come from? |
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