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| Extinct Animal Questions | |
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| Topic Started: Nov 26 2013, 10:24 PM (193,334 Views) | |
| babehunter1324 | Dec 15 2015, 10:15 AM Post #2401 |
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Hence why I didn't refer to them using the specific names and I used sp instead. Still I doubt there habitat overlapped much with that of Coelodonta or even Elasmotherium. Edited by babehunter1324, Dec 15 2015, 10:28 AM.
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| Incinerox | Dec 15 2015, 11:13 AM Post #2402 |
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Āeksiot Zaldrīzoti
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You'd be right, there. There was more distribution overlap among the Stephanorhinus species than between any of the relevant genera. Elasmotherium was more southward than Coelodonta, and those two were further east than Stephanorhinus. |
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| BossMan, Jake | Dec 15 2015, 12:55 PM Post #2403 |
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Son of God
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Ok question regarding Dakotaraptor. I keep looking at articles saying that its the 2nd largest Dromaeosaur. Have some people forgotten about Achillobator? It was larger then Dakotaraptor by a full meter and was estimated to be 800 pounds. Almost twice that of the 440 pound Dakotaraptor. Has more research been done on Achillobator or was Dakotaraptor bigger? |
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| Furka | Dec 15 2015, 03:22 PM Post #2404 |
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Did any of those live in Italy by any chance ? |
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| Jannick | Dec 15 2015, 03:36 PM Post #2405 |
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Papua merdeka!
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I believe both mentioned Stephanorhinus species (Merck's and Narrow-nosed rhinoceroses) are known from Italy, as well as the earlier S. etruscus (obviously). |
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| babehunter1324 | Dec 15 2015, 04:49 PM Post #2406 |
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They were, but were they still around by the time of the last Ice Age as they were in Spain? I'm not sure. |
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| Incinerox | Dec 15 2015, 06:38 PM Post #2407 |
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Āeksiot Zaldrīzoti
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Italy, Spain, UK, Germany, Poland, the Caucasus, the Balkans, Syria and Israel were mentioned as Late Pleistocene locales for the genus. |
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| BossAggron | Dec 15 2015, 07:27 PM Post #2408 |
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Formerly Dilophoraptor
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Are you sure its not referring to Length as this "largeness" factor? |
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| Joe99 | Dec 15 2015, 07:54 PM Post #2409 |
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fair enough on points it did not have a large mouth or arms unlike other animals of that have the same lifestyle that one may be better for Drepanosaurus with its huge claws are there anything in the skull that suggests that it that would be a cool idea |
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| BossMan, Jake | Dec 15 2015, 10:51 PM Post #2410 |
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Son of God
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Not sure what you mean by that. If I wasn't clear I'm saying that Achillobator was 18 feet long compared to the near 16 foot Dakotaraptor |
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| Incinerox | Dec 16 2015, 07:53 AM Post #2411 |
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Āeksiot Zaldrīzoti
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Truth is, we can't actually make an estimate for Achillobator. Even though Dakotaraptor itself is known from less material, what we do have is almost exclusively data for its limbs. And those limbs suggest an animal which was comparable to Dromaeosaurus and Deinonychus in build (both animals are VERY well documented so we know exactly what sort of build they had), so we can use Dromaeosaurus to fill in the gaps and create a rough estimate for the size of the animal we're dealing with. So we can say, with caution, that Dakotaraptor was 5 to 6m long, which, by my very crude calculations, put it at about 320 to 400kg. Putting that in perspective, a Utahraptor of that kind of length was likely just short of 500kg (I bet once we get a better idea of its new proportions when the elusive paper comes out, it'll be heavier). Achillobator isn't quite so lucky. We have slightly more material for it specifically, but it's so weirdly proportioned that we can't actually create any accurate mass estimates at this time. Its only close relative, Utahraptor, is undergoing some MAJOR changes to its known body shape (which is stupidly robust, but comparatively shorter in length to the usual depictions). Most estimates are putting it at 350kg and, again, 5-6m long. Only here it assumes a more conventional shape like previous depictions of Utahraptor. While the gracile build of Dakotaraptor might push it more towards 5.5-6m, Achillobator, assuming it follows Utahraptor's body plan, might actually get knocked down to 5m, though perhaps maintain that same weight, though again, we'd need better data on Utahraptor for this to mean anything. That all being said, in news articles, dinosaur "size" is dictated entirely by length. Which is all people pay attention to but it's a very poor indicator on overall mass. |
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| BossMan, Jake | Dec 16 2015, 10:59 PM Post #2412 |
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Son of God
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In dromaeosaur feather design we know now that the feathers on the head would have stopped just for the ends of the mouth forming a "beak" would the same have been true for Troodon and its kin? |
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| CyborgIguana | Dec 16 2015, 11:13 PM Post #2413 |
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Do we actually know that? Sounds pretty speculative IMO. |
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| BossMan, Jake | Dec 16 2015, 11:15 PM Post #2414 |
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Son of God
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Well this video was pretty compelling https://www.youtube.com/watch?v=7ZgxXEjS0ck |
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| CyborgIguana | Dec 16 2015, 11:55 PM Post #2415 |
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Just saying there ARE birds today with bare faces, so I don't think it's wise to say we know for certain that all dromaeosaurids had entirely feathery heads. |
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