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| Dromaeosaurus v Velociraptor | |
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| Tweet Topic Started: May 14 2012, 06:18 PM (8,604 Views) | |
| Taipan | May 14 2012, 06:18 PM Post #1 |
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Dromaeosaurus albertensis Dromaeosaurus (play /ˌdrɒmiːɵˈsɔrəs/) was a genus of theropod dinosaur which lived during the Late Cretaceous period (middle late Campanian), sometime between 76.5 and 74.8 million years ago, in the western United States and Alberta, Canada. The name means 'running lizard'. Dromaeosaurus was a small carnivore, about 2 m (6 ft 7 in) in length and 15 kg (33 lb) in weight. Its mouth was full of sharp teeth, and it had a sharp "sickle claw" on each foot. It lived during the Campanian stage of the Late Cretaceous, however, some fragmentary remains such as teeth which may belong to this genus have been found from the late Maastrichtian age Lance and Hell Creek Formations, dating to 65.5 million years ago. Dromaeosaurus had a relatively robust skull with a deep snout. Its teeth were rather large and it had only nine of them in the maxilla. In Dromaeosaurus albertensis, a vein at the back of the head, the vena capitis dorsalis, drains the front neck muscles through two long canals running to the posterior surface of the brain. ![]() Velociraptor mongoliensis Velociraptor ( /vɨˈlɒsɨræptər/; meaning 'swift seizer')[1] is a genus of dromaeosaurid theropod dinosaur that existed approximately 75 to 71 million years ago during the later part of the Cretaceous Period. Two species are currently recognized, although others have been assigned in the past. The type species is V. mongoliensis; fossils of this species have been discovered in Mongolia. Smaller than other dromaeosaurids like Deinonychus and Achillobator, Velociraptor nevertheless shared many of the same anatomical features. It was a bipedal, feathered carnivore with a long, stiffened tail and an enlarged sickle-shaped claw on each hindfoot, which is thought to have been used to kill its prey. Velociraptor can be distinguished from other dromaeosaurids by its long and low skull, with an upturned snout. Velociraptor was a mid-sized dromaeosaurid, with adults measuring up to 2.07 m (6.8 ft) long, 0.5 m (1.6 ft) high at the hip, and weighing up to 15 kg (33 lb). The skull, which grew up to 25 cm (9.8 in) long, was uniquely up-curved, concave on the upper surface and convex on the lower. The jaws were lined with 26–28 widely spaced teeth on each side, each more strongly serrated on the back edge than the front—possibly an adaptation that improved its ability to catch and hold fast-moving prey. _____________________________________________________________________
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| retic | Aug 4 2013, 02:49 PM Post #16 |
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snake and dinosaur enthusiast
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Dromaeosaurus wins since it has a more robust skull and it is possibly heavier. |
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| thesporerex | Aug 4 2013, 05:08 PM Post #17 |
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Kleptoparasite
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dromaeosaurus wins due to reasons stated above |
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| Makaveli7 | Aug 5 2013, 12:51 PM Post #18 |
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Heterotrophic Organism
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Dromaeosaurus wins because it was more powerful and had a deadlier bite. |
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| BITEFORCE MASTER | Feb 9 2014, 08:38 AM Post #19 |
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Autotrophic Organism
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Dromaeosaurus is a bit bigger and had stronger talons than V raptor |
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| spinosaurus rex | Feb 9 2014, 11:36 AM Post #20 |
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Carnivore
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52-55% in favor of dromaeosaurus |
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| Vivyx | Feb 11 2014, 01:44 AM Post #21 |
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Felines, sharks, birds, arthropods
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this is a deleted post
Edited by Vivyx, May 1 2016, 07:30 AM.
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| spinosaurus rex | Feb 11 2014, 11:51 AM Post #22 |
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Carnivore
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the reason to favor the velociraptor is due to them both having weaponry that will be sufficient enough to end the life of the latter. yes, the dromaeosaurus is significantly thicker with a more robust head, but all that wouldn't matter if the opponent could get its sickle claw in the vital are first. its is indeed a close fight, and I have no doubts on velociraptor being able to hold its own, but I do favor the droaeosaurus the majority. most likely around 55% of the time. |
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| Ausar | Feb 11 2014, 12:25 PM Post #23 |
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Xi-miqa-can! Xi-miqa-can! Xi-miqa-can!
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I don't usually make a skull comparison, but both are armed with (afaik) equal claws, and their other weapons (jaws) would decide who has a slight edge.![]() Dromaeosaurus albertensis wins. Edited by Ausar, Feb 11 2014, 12:27 PM.
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| Daspletosaurus | Feb 11 2014, 02:13 PM Post #24 |
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Heterotrophic Organism
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Agreed. Based on the above pictures Dromaeosaurus would win due to more robust skull and thicker teeth. |
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| spinosaurus rex | Feb 11 2014, 11:29 PM Post #25 |
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Carnivore
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but its only marginal. the only major diffrence is skull design. everything else is quite the same in terms of body biuld, therfore its not that far off of a match. but i do agree that dromaeosaurus wins more often then not |
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| theropod | Feb 11 2014, 11:58 PM Post #26 |
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palaeontology, open source and survival enthusiast
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Their claws are not "equal". dromaeosaurines have more robust skulls because they relied on them more. In exchange, they relied less on their claws, and those were likely smaller and less curved. This is a claw of an Adasaurus: Edited by theropod, Feb 11 2014, 11:59 PM.
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| Spinodontosaurus | Feb 12 2014, 02:02 AM Post #27 |
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Herbivore
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^I wouldn't generalise dromaeosaurines like that, Utahraptor is quite well known for having exceptionally large and blade-like claws by dromaeosaurid standards. |
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| Vobby | Feb 12 2014, 02:06 AM Post #28 |
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Omnivore
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But that's true for Dromaeosaurus, no? I remember having read it somewhere, although I can't find it now. |
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| Spinodontosaurus | Feb 12 2014, 03:02 AM Post #29 |
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Herbivore
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Hmm the type specimen does preserve a claw, but it isn't figured in the description paper, but from what I can glean from claws attributed to Dromaeosaurus on the internet (whether they really are Dromaeosaurus is another matter) and mounted skeletons, then theropod was probably right... ...about saying the claws were less re-curved anyway. Whether this meant they relied less on their claws than, say, Velociraptor or Deinonychus, or whether they simply used them for a different purpose isn't clear. I put this together: ![]() I should note that if we scale Dromaeosaurus based on Scott Hartman's Utahraptor or Jaime Headden's Achillobator, then it comes out as shorter (but about as deeply bodied) than that large Velociraptor specimen... but how relevant in proportions would a 300 kg Achillobator and a half-tonne Utahraptor be to a 20 kg Dromaeosaurus? Notably their legs are far shorter than Velocirptor as you would expect from larger animals. If Dromaeosaurus and Velociraptor are of similar size then I favour Dromaeosaurus due to it's more heavily constructed skull, but if Dromaeosauurs was smaller like I mentioned above (albeit only in terms of leg length and torso length) then I might lean to Velociraptor. |
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| theropod | Feb 12 2014, 03:18 AM Post #30 |
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palaeontology, open source and survival enthusiast
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^True, I may have been overgeneralising. I remembered that this is what one sees in Dromaeosaurus mounts, although those claws may just be reconstructed, and I just wanted to remark that there would be differences. I’m aware of the claw of Utahraptor. But in this case it’s skull morphology isn’t well-known. Shartman for example restores it as much more elongate than Dromaeosaurus. Anyway, I don’t think this makes much of a difference. One relies on its jaws (btw Dromaeosaurus may also have different teeth than other dromaeosaurs, lacking those strange apically hooked denticles), the other on its claws, but both likely had potent weaponery. At parity, I say 50/50 |
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