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| Extinct Animal Questions | |
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| Topic Started: Nov 26 2013, 10:24 PM (193,333 Views) | |
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Dec 17 2015, 12:18 AM Post #2416 |
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Face feather talk happens at about 5:20 for anyone interested in watching that video. I don't disagree with him but it's interesting how he says that dromaeosaurs can't look like vultures, but rather like "modern raptors", when vultures are raptors. Edited by Admiral General Aladeen, Dec 17 2015, 12:20 AM.
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| CyborgIguana | Dec 17 2015, 01:07 AM Post #2417 |
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In any case it's very risky to assume all dinosaurs of a particular family had a certain trait just because one member of that family had it, considering how diverse animals today can be even within a single clade. Remember when we thought all ceratopsians had quills just because Psittacosaurus had them? Case in point. |
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| Mathius Tyra | Dec 17 2015, 03:54 AM Post #2418 |
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Rat snake is love... Rat snake is life
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Well, New world vultures aren't considered as true raptor actually, but that still can't explain the old world ones.... |
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| Incinerox | Dec 17 2015, 04:58 AM Post #2419 |
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Āeksiot Zaldrīzoti
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"Modern raptors" is a very generic term for any carnivorous flying bird with talons and a hooked beak. For you see, the Accipitriformes (buzzards, eagles, harriers, hawks, kites, osprey, secretary bird and Old World vultures) form a clade alongside the Cathartiformes (New World vultures and teratorns). It's worth noting already that what we define as a "vulture" as such is already divided across two diffrerent clades. Now the Accipitriformes are somewhat related to owls, which form their own clade, the Strigiformes. And these guys all fall under one greater clade, alongside mousebirds, rollers, cuckoo rollers, trogons, hornbills, kingfishers, woodpeckers and hoopoes, called the Afroaves. Meanwhile, CLASSIC bird of prey material, the Falconiformes, the caracaras and falcons, are in a completely different clade, the Australaves, which includes caraimiformes (including terror birds), parrots and passerines. And as we all know, integument, both facial and otherwise, is highly variable among these already somewhat disjointed clades. To which "modern raptor" is he referring? |
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| Mathius Tyra | Dec 17 2015, 09:15 AM Post #2420 |
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Rat snake is love... Rat snake is life
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What would be the main diet of Anzu? I knows that many Oviraptosaurs have beak that seems to work like crushing machine to crack seed/egg/shellfish/whatever, but looking at Anzu's gracile lower jaw make me feel that this giy wouldn't be able to crack things up pretty well... |
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| Incinerox | Dec 17 2015, 12:05 PM Post #2421 |
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Āeksiot Zaldrīzoti
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Likely fruit and seeds. |
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| Paleop | Dec 17 2015, 05:48 PM Post #2422 |
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Paleopterix
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are there any skelitals of rugops? |
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| BossAggron | Dec 17 2015, 06:34 PM Post #2423 |
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Formerly Dilophoraptor
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I found a good neutral pose one |
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| Paleodude | Dec 17 2015, 09:49 PM Post #2424 |
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ex-Krampus
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So looking at modern day whales and comparing them to Basilosaurus reconstructions I had a thought, since most cetaceans have some sort of soft tissue covering the top of the cranium is it possible or even beneficial for a Basilosaurus to share that trait? |
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| CyborgIguana | Dec 17 2015, 10:24 PM Post #2425 |
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IIRC there's evidence against Basilosaurus possessing a melon (that's the technical term for the "fleshy head tissue" you're describing), though I forget exactly what it is.
Edited by CyborgIguana, Dec 17 2015, 10:24 PM.
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| BossMan, Jake | Dec 17 2015, 11:59 PM Post #2426 |
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Son of God
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Do we have any fossils of Tyrannosaurus that are larger then Sue? If so by how much? |
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| babehunter1324 | Dec 18 2015, 12:09 PM Post #2427 |
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Duane Nash made a post a few weeks back comparing the fossil evidence of face biting in certain Theropods with the face biting a lot of birds like turkeys, roosters and vultures do. He used it as an argument that it was pretty likely that even some heavily feathered Theropods like Dromeosaurids could have had bald heads like turkeys and turkey vultures. The counterargument is that some species of vulture had featheres in their neck and face and that some Galliformes that engage regulary in fights like pheasants had their head and neck fully covered of feathers. IMO it's likely that it varied depending on the species. Edited by babehunter1324, Dec 18 2015, 12:11 PM.
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| Tyranachu | Dec 18 2015, 01:50 PM Post #2428 |
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Nerdasaurus
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What animals lived with Thylacosmilus? And is there like, a list I can find? I can't seem to find anything on the internet. |
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| Incinerox | Dec 18 2015, 02:27 PM Post #2429 |
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Āeksiot Zaldrīzoti
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Sue is our largest and most complete tyrannosaur, HOWEVER... Scotty, our oldest geologically and our oldest biologically, might have met that sort of size. Most of it is unprepared so we don't know. At an estimated age of 30-33 years old, it's definitely Sue's senior (noting that Sue died at 26 years and 9 months old - I got that directly from Mark Norrell just yesterday, so that is a FACT), and most of what we have suggests that it too was one of the giant robust brutes of the species like Sue. Then there's Samson, while shorter than Sue by 10cm, was a good 60cm TALLER than Sue at the hips. I can't say for sure on overall mass but assuming they were of similar robust-ness, that would make Samson a substantially larger overall. I THINK they're more or less the same build, but Samson seems to have a notably smaller skull in relation to his overall body size. Stan as well, while not a particularly large specimen, wasn't fully grown. Given his build, he could have very likely have met Sue's measurements if he lived to his late 20s like the others. Basically, Sue's our largest confirmed measurement, and likely our heaviest too. However, what needs to be clear at this point is that these particularly massive specimens of T. rex are not at all rare, and are likely common to the species as a whole. It's highly unlikely that Sue was indeed the Arnold Schwarzenegger/John-Cena/Game of Thrones' "The Mountain" of the species.
If these links work, this should help you: http://fossilworks.org/?a=collectionSearch&collection_no=55600 http://fossilworks.org/?a=collectionSearch&collection_no=87198 http://fossilworks.org/?a=collectionSearch&collection_no=140932 http://fossilworks.org/?a=collectionSearch&collection_no=151500 And here's an book on it |
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| Paleop | Dec 19 2015, 08:04 PM Post #2430 |
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Paleopterix
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could any hesperornithes have lived in inland/ coastal swamps or lakes? |
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