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| Extinct Animal Questions | |
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| Topic Started: Nov 26 2013, 10:24 PM (193,342 Views) | |
| Paleop | Nov 3 2015, 04:46 PM Post #2281 |
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Paleopterix
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i'm surprised that this community hasn't joined together to make a psuedo wwd yet... |
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Nov 3 2015, 04:49 PM Post #2282 |
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Pull my finger!
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http://comments.deviantart.com/1/563738384/3957513813 Everything should be right there
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| Furka | Nov 3 2015, 05:00 PM Post #2283 |
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My bet is that the sail would get damaged when the animal was younger, and more exposed to any sort of danger. Then the animal would grow up with the scars of the incidents. |
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| Incinerox | Nov 4 2015, 02:54 AM Post #2284 |
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Āeksiot Zaldrīzoti
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Ah, right. See, Headden's made reference to specifically mammalian-tier muscly cheeks in EoFauna's comment. Which is entirely true - there is no evidence to suggest that the cheeks themselves were muscled like in mammals. HOWEVER, the fact that ceratopsian teeth are inset away from the outer margins of the jawline does suggest the presence of soft tissue covering the jaws (a similar condition seen in every other derived ornithischian - ankylosaurs had even thrown in a plate of armour there too). My thinking is EoFauna's simply misinterpreted what Headden meant. Though I'd like to point out that Headden is notoriously bad for adding far less soft tissues to his dinosaurs than he really should be doing. All of his dinosaurs look seriously emaciated. |
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| BossMan, Jake | Nov 4 2015, 02:41 PM Post #2285 |
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Son of God
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Some questions about extinct crocodiles. What was the the largest known by good fossils? And by fragmentary remains? What kind of prey did Sarcosuchus feed on most often? Was Mourasuchus a plankton eater? In Animal Armaggedon they depicted Phobosuchus(Deinosuchus) living til the KPG extinction. Was this true? And if not why include it? |
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| Incinerox | Nov 4 2015, 03:50 PM Post #2286 |
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Āeksiot Zaldrīzoti
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1) All of our giant crocs are actually known from okay-ish fragments (we're dealing mostly in skull remains here, which is normally enough to predict size based off related taxa). Sarcosuchus is our most complete, and our longest of the lot, known from multiple specimens from North Africa and a second species from Brazil. Deinosuchus and Purussaurus were likely heavier though, given Sarcosuchus was fairly long and lightly built. In terms of length: > Sarcosuchus, 11-12m > Deinosuchus, 10-12m > Purussaurus, 10-12m > Mourasuchus, 10-12m > Crocodylus bugtiensis, 10-11m > Rhamphosuchus, 8-11m > Stomatosuchus, 10m > Gryposuchus, 10m > Euthecodon, 10m 2) Sarcosuchus was a piscivore. There were MASSIVE fish in the area (elephant sized Mawsonia, for example), and tests on its skull suggest it couldn't actually deathroll, so it was likely not feeding on large dinosaurs like media hype suggests. 3) That's what they say. I sooorta disagree, in that it didn't have the teeth of an explicit filter feeder (this is off the top of my head, so I welcome pics that say otherwise). I want to say it probably went after shoals of small fish rather than plankton. I also wonder how effective its jaws were like that of a platypus's bill, rooting around in muddy substrate for freshwater rays or something... [SPECULATION INTENSIFIES] 4) No. They lived from 80 to 73Ma, our youngest remains 7 million years OLDER than the K/Pg extinction. Why they included it at the end of the Cretaceous? I don't know. Coz they're stupid and didn't do their research? It shocks me how many "documentaries" don't do their god damn research. |
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| BossMan, Jake | Nov 4 2015, 04:00 PM Post #2287 |
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Son of God
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What about Aegisuchus? Some estimates put it anywhere from 50-72 feet? Just curious as to your thoughts on that |
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| Incinerox | Nov 4 2015, 04:11 PM Post #2288 |
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Āeksiot Zaldrīzoti
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I would say they need to tone it down a bit, and settle at 10-12m like all the other giants until further data suggests otherwise. It still had a pretty large braincase, but we barely have anything for it or its relatives. Edited by Incinerox, Nov 4 2015, 04:14 PM.
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| Furka | Nov 4 2015, 05:45 PM Post #2289 |
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Because giant mesozoic crocodilian. And that whole series had the nasty habit of putting together animals from different ecosystems. That Cretaceous part also featured Velociraptor, Byronosaurus and Protoceratops living at the same time of Hell Creek Fauna ... |
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| CyborgIguana | Nov 4 2015, 06:03 PM Post #2290 |
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TBH I was surprised that their last episode taking place in the present day didn't include gomphotheres and phorusrhacids!
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| Mathius Tyra | Nov 5 2015, 07:19 AM Post #2291 |
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Rat snake is love... Rat snake is life
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And they have the ugliest T. rex ever... And they said T. rex would be the last dinosaurs to live because it could eat any other dinosaurs, thus making them eating all of the other species to extinction before facing their own... |
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| heliosphoros | Nov 5 2015, 09:16 AM Post #2292 |
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The gist appears indeed that their wings were generally barren aside from the zones around the limbs, but anurognathids have pycnofibers trailing at least the dystal part of the wing membrane. |
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| Jules | Nov 5 2015, 09:26 AM Post #2293 |
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Mihi est imperare orbi universo
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Do we know anything about the role of said pycnofibers? Could their purpose be similar to those small barbs and hooks on owl feathers, to enable silent flight? |
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| BossMan, Jake | Nov 5 2015, 11:35 AM Post #2294 |
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Son of God
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Hmm interesting concept. In a species like Sordes that would make sense, its large eyes could've been an adaptation for nocturnal hunting. As for larger Pterosaurs I don't think so. I think the Pycnofibers would've been like the short hair of some mammals, keeping the skin (Which may have been sensitive to sunlight) warm/cooled and protected from the Sun. Especially the ones that lived out by the Sea/Ocean Edited by BossMan, Jake, Nov 5 2015, 11:37 AM.
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| Jules | Nov 5 2015, 11:41 AM Post #2295 |
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Mihi est imperare orbi universo
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I meant the ones on Anurognathids, obviously Azhdarchids wouldn't benefit much from silent flight. |
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