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Utahraptor v Gastonia
Topic Started: Oct 27 2012, 08:37 PM (7,782 Views)
DinosaurMichael
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Apex Predator
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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.

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Gastonia burgei
Gastonia is a genus of nodosaurid dinosaur from the Early Cretaceous of North America, around 125 million years ago. Closely related to Polacanthus, it has a sacral shield and large shoulder spikes. It is also the first polacanthine dinosaur to have been mounted for display at the Denver Museum of Nature and Science, together with the related Gargoyleosaurus. This dinosaur was found in the same quarry as Utahraptor, the largest known dromaeosaurid. Named by James Kirkland in 1998 from material recovered in Grand County Utah, more complete material exists for Gastonia than for any other polacanthine ankylosaur. Unfortunately, a wealth of disarticulated material from a bonebed presents problems as it can be hard to tell how many spikes a particular Gastonia actually had. Gastonia was named after Robert Gaston, the discoverer of the genus. Robert Gaston is a paleoartist, who makes a living of creating museum quality casts and replicas of fossils for private and public collections. The type species, G. burgei, was found in rocks of the Cedar Mountain Formation (Yellow Cat member), which has been dated to 126 million years ago. Weight: 1 ton (900 kilos).

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Dark allosaurus
Oct 27 2012, 03:24 AM
utahraptor vs gastonia or some other ankylosaur
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SpinoInWonderland
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I posted a Gastonia skeletal in the Gastonia profile, use it if you want to make a comparison, it has both dorsal view and side view...
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Black Ice
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Drom King
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How's the gastonia going to kill the drom? It had no bony tail club....also from the gastonia profile,
Quote:
 
Gastonia was a herbivore and would have grazed on low plants.
Gastonia is the most common dinosaur in the particular fossil layer in which it is found - the Yellow Cat member of the Cedar Mountain formation in Utah. The most common large predator found in this location is Utahraptor: this suggests Gastonia may have been preyed upon by Utahraptor.

Really everyone seems to favor the ankylosaurid just because its armored rolleyes
Edited by Black Ice, Dec 29 2012, 03:41 PM.
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SpinoInWonderland
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Just because Utahraptor is the most common large predator of it's time doesn't mean that it was the one which preyed on Gastonia, what about a juvenile Acrocanthosaurus ancestor? One large enough to simply flip the Gastonia over then eat it from the underside...
Edited by SpinoInWonderland, Dec 30 2012, 04:13 PM.
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Temnospondyl
Stegocephalia specialist.
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Gastonia dominates.
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theropod
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Black Ice
Dec 29 2012, 03:39 PM
How's the gastonia going to kill the drom? It had no bony tail club....also from the gastonia profile,
Quote:
 
Gastonia was a herbivore and would have grazed on low plants.
Gastonia is the most common dinosaur in the particular fossil layer in which it is found - the Yellow Cat member of the Cedar Mountain formation in Utah. The most common large predator found in this location is Utahraptor: this suggests Gastonia may have been preyed upon by Utahraptor.

Really everyone seems to favor the ankylosaurid just because its armored rolleyes
Are you joking once again? It is not indicated just because it is hypothetised in our profile
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Black Ice
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Drom King
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theropod
Jan 3 2013, 03:06 AM
Black Ice
Dec 29 2012, 03:39 PM
How's the gastonia going to kill the drom? It had no bony tail club....also from the gastonia profile,
Quote:
 
Gastonia was a herbivore and would have grazed on low plants.
Gastonia is the most common dinosaur in the particular fossil layer in which it is found - the Yellow Cat member of the Cedar Mountain formation in Utah. The most common large predator found in this location is Utahraptor: this suggests Gastonia may have been preyed upon by Utahraptor.

Really everyone seems to favor the ankylosaurid just because its armored rolleyes
Are you joking once again? It is not indicated just because it is hypothetised in our profile
And here you go with this. I bet if I posted another source saying this, if you don't agree then it's not true right? Predictable as always.
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Black Ice
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Drom King
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People have to realise (me too on occasion) that the majority if not all of extinct animal discussion is based on hypothesise.
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theropod
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true, but a claim of utahraptor being gastonias predator from the profile just basing on the fact that it was a predator from the same geologic and geographic range is completely baseless.
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Black Ice
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lol It wasn't me that stated that, I was just showing the excerpt. But anyways, I as of right now have no opinion on this match. My bias says utahraptor, and tbh I might actually go on a rampage of refuting everyone here to support my view, IDK. I'll ponder it over.
Edited by Black Ice, Jan 3 2013, 05:45 AM.
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Black Ice
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But seriously though,
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Really ankylosaur supporters? rolleyes
Edited by Black Ice, Jan 3 2013, 05:49 AM.
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Carcharadon
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^ with that comparison i strongly favor the raptor now
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theropod
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What are the lenghts of those animals
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Black Ice
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Drom King
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Fragillimus335
Nov 3 2012, 03:09 PM
Malgus
Nov 3 2012, 10:02 AM
Gastonia wins!

That size comparison is way off. The Gastonia was twice as heavy as the Utahraptor.
Size comp is just fine, Utah 6.75 meters, Gastonia 4.5 meters. Gastonia is squat and wide, but probably didn't weigh a ton. Maybe 1000-1200 lbs.
This.

EDIT: HOW THE HELL COULD YOU ALL HAVE MISSED THIS?????
Edited by Black Ice, Jan 3 2013, 05:50 AM.
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theropod
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my memory isn't the best. black ice, don't you too think it is pretty annoying when people claim a size comparison was incorrect just because it doesn't fit the weights given in the profile?
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Black Ice
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Drom King
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lol yes I do as well. Some people just don't realize that 1000lbs to a ton isn't really big or heavy.
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