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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,446 Views)
Incinerox
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Āeksiot Zaldrīzoti

Flish
Nov 11 2014, 04:22 PM
Is there evidence that Caenagnathoid crests are featherless or is this just something people do a lot of for some reason?
This is actually a very good question.

I guess they base it off Cassowary crests. I'm not sure if there's anything for or against it other than the fact that feathers could technically form crests of similar size and shape without having to grow weirdly shaped bony crests, so they go with that logic.

I think.

Honestly I don't have a clue.
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Mathius Tyra
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Rat snake is love... Rat snake is life

Which is safer to depict Dryosaurus? With some kind of fuzzy intergument or just scales like Hadrosaur?
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Furka
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I went with the scaly look because IIRC it was closer to Iguanodontids, Like Camptosaurus. Could be totally wrong tho, and it wouldn't be the first time I edit the look of one of my animals in the story.
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Yi Qi
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yeah, i'd definately keep dryosaurs scaly, tough i wouldn't say the same for thescelosaurs and other more basal groups.

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CyborgIguana
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Wasn't there at least one specimen of Thescelosaurus preserved with crocodilian-like scales on its neck?
Edited by CyborgIguana, Nov 11 2014, 08:10 PM.
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Yi Qi
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CyborgIguana
Nov 11 2014, 08:09 PM
Wasn't there at least one specimen of Thescelosaurus preserved with crocodilian-like scales on its neck?


In resume, we haven't got a clue.

Quote:
 
The nature of this genus' integument, be it scales or something else, is currently unknown, although potential evidence exists: Charles Gilmore described patches of carbonized material near the shoulders as possible epidermis, with a "punctured" texture, but no regular pattern,[10] and William J. Morris suggested that armor was present, in the form of small scutes he interpreted as located at least along the midline of the neck of one specimen.[7] Scutes have not been found with other articulated specimens of Thescelosaurus, though, and Morris's scutes could be crocodilian in origin.[18]


Theres no evidence on other thescelosaurids such as Zephyrosaurus,Orodromeus,Jeholosaurus, Parksosaurus and others either, so we are left in the dark in the matter of these creature's integument.

so yeah we have no clue, as for now i'm taking saurian's instance and giving them some bristles in the body and a scaly tail a-lá Kulindadromeus.

Posted Image
Edited by Yi Qi, Nov 11 2014, 08:37 PM.
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Iben
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There'll be no foot-walking! Just air-flying!

Not to undermine anyone's views here, but is there an article or a source on the spines instead of quills thing ? I'm really having trouble finding anything on it really, except for this video, and I'd just really want to read more about it xD

Not to respark the debate, just general interest in the spike-theory.
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stargatedalek
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I'm not slow! That's just my moe!

Austroraptor
Nov 11 2014, 05:40 PM
DinoBear
Nov 11 2014, 04:23 PM
Austroraptor
Nov 11 2014, 03:47 PM
Kulindadromeus' s structures have no relation to theropod feathers, they are another kind of structure altogether.
Care to expand upon that? Haven't heard of something like that
The scientists on the original news article compared them and found them to be similar to Tianyulong's "fuzz", from what i heard and that one was analysed and found out to be unlike theropod feathers IIRC.
I don't recall a common ancestor being ruled out
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Luca9108
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Master of Dinosaurs

Question: Is it possible that the found legs of the new Spinosaurus reconstruction are from a young Spinosaurus and the other parts of the skeleton are from an adult Spinosaurus?

http://media1.s-nbcnews.com/i/newscms/2014_37/661471/140911-spino5_b5ac60e2f46805dfd895cfee61e4341c.jpg

Silly Question: Why mammals aren't reptiles like birds? ( I know silly question xD )
Edited by Luca9108, Nov 13 2014, 12:16 PM.
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Jules
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Mihi est imperare orbi universo

Luca9108
Nov 13 2014, 12:15 PM
Silly Question: Why mammals aren't reptiles like birds? ( I know silly question xD )
Reptilia is a gigantic piece of taxonomical shit xD
According to cladistics, both mammals and birds are reptiles.
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Mathius Tyra
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Rat snake is love... Rat snake is life

Well,you ask why don't we really see mammals as a kind of reptile as much as or more than birds, right?

My opinion is that mammals have passed through evolution more than birds from the reptilian ancesters and most of them have changed a lot of reptilian trait more than birds have done, for example, lactating, new types of intergument, etc. Which make them looks far more different from reptiles nowaday than birds.

Still, this is a very hard question to answer and is quite confusing too.
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CyborgIguana
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Like JMT said, probably because birds have a lot more reptilian characteristics than most mammals currently do (scaly patches of skin, egg-laying, internal sense organs and genitalia, etc.) I know there are mammals that possess these features as well, but only some, and I'm pretty sure the only mammals that combine all these features together are monotremes.

As for your other question, it's been asked before and refuted. All the bones are from similarly sized adult specimens, and we can say with a fair amount of certainty that this is how Spinosaurus looked. You may not like it, but nature doesn't exist to suit human tastes.
Edited by CyborgIguana, Nov 13 2014, 01:18 PM.
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stargatedalek
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I'm not slow! That's just my moe!

CyborgIguana
Nov 13 2014, 12:42 PM
As for your other question, it's been asked before and refuted. All the bones are from similarly sized adult specimens, and we can say with a fair amount of certainty that this is how Spinosaurus looked. You may not like it, but nature doesn't exist to suit human tastes.
actually, they are from a juvenile
the refuting came from how much to scale them up to match the adult bones
however said refusals have been dropped in light of more detailed diagrams being released of the new fossils

so in answer to the question, yes the new bones are from a juvenile, and no there are no mistakes
it really did have tiny legs
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CyborgIguana
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I remember hearing something about a Diplodocus-sized prosauropod found in the Elliott Formation of South Africa a while back. Is there any info on this?

I know it sounds like the ridiculous product of some bad spec-evo project, but I legitimately remember hearing something along these lines.
Edited by CyborgIguana, Nov 13 2014, 04:35 PM.
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Incinerox
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Āeksiot Zaldrīzoti

Oddly enough, the Giant Prosauropod was discussed on ZTV a while ago. I think we came to the conclusion that the indescribed remains of what seemed to be a TITANIC prosauropod, currently viewed as a new species, might turn out to be our first look at an adult Aardonyx, which is currently known from only 2 juveniles.

Here's a blog link:
http://sauropodomorphlair.blogspot.hk/2014/09/possibly-largest-biped-everand-its-from.html

And here's the conclusion we came to thanks to comrade DK1000 of ZTV:
DK1000
 

Hidden coz walls of text
Edited by Incinerox, Nov 13 2014, 05:30 PM.
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