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Post by Griffin on Apr 19, 2011 21:42:53 GMT
About the pinkie...it could also be plausible that it wasn't visible at all as in not free from the rest of the fingers. The whole hand could have been just one mit. Think tailbones in humans or leg bones in whales and pythons.
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Post by arioch on Apr 19, 2011 22:18:36 GMT
So its fair to assume that iguanodontids had mittens too? except for the big claw, obviously...
They might be in my next sketch (a Mapusaurus eating its prey)
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Post by Horridus on Apr 19, 2011 22:28:22 GMT
So its fair to assume that iguanodontids had mittens too? except for the big claw, obviously... Iguanodon actually had hoof-like claws on its 3 middle fingers (which were united). The palms faced strongly inward again. Obviously the pinkie and thumb claw were separate. Quoth Wikipedia: "...the hand is relatively immobile, with the three central fingers grouped together, bearing hoof-like phalanges, and able to hyperextend. This would have allowed them to bear weight." |
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Post by stoneage on Apr 19, 2011 23:21:57 GMT
" I know , they´re so big they wouldn´t need them for the heat function. But after all their ancestors (Guan Long and relatives) had feathers. And very big animals like Gigantoraptor had feathers too (or it was proto feathers?) ;D There is no direct evidence that Gigantoraptor had feathers. First they thought it was a sauropod and then a raptor. It is not a true raptor. Its mass is 35 times that of any known Oviraptor (3,000 pounds), and thats what is suppose to be a juvenile. There is only one specimen and it is incomplete. There is no neck and only a lower jaw. It's family classification is still questionable. At that size in a climate hotter then todays there wouldn't be much need for feathers. |
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Post by arioch on Apr 20, 2011 1:18:30 GMT
" I know , they´re so big they wouldn´t need them for the heat function. But after all their ancestors (Guan Long and relatives) had feathers. And very big animals like Gigantoraptor had feathers too (or it was proto feathers?) ;D There is no direct evidence that Gigantoraptor had feathers. First they thought it was a sauropod and then a raptor. It is not a true raptor. Its mass is 35 times that of any known Oviraptor (3,000 pounds), and thats what is suppose to be a juvenile. There is only one specimen and it is incomplete. There is no neck and only a lower jaw. It's family classification is still questionable. At that size in a climate hotter then todays there wouldn't be much need for feathers. Its not a true raptor? well, his skull looks quite oviraptorian to me...or in any case maniraptorian and undoubtely coelurosaurian. In my eyes it would be extraordinary if such animal (or big therizinosaurids for that matter) lacked feathers or proto feathers. Why Moa bird needed feathers, given his size? but he had...  |
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Post by stoneage on Apr 20, 2011 3:00:49 GMT
" I know , they´re so big they wouldn´t need them for the heat function. But after all their ancestors (Guan Long and relatives) had feathers. And very big animals like Gigantoraptor had feathers too (or it was proto feathers?) ;D There is no direct evidence that Gigantoraptor had feathers. First they thought it was a sauropod and then a raptor. It is not a true raptor. Its mass is 35 times that of any known Oviraptor (3,000 pounds), and thats what is suppose to be a juvenile. There is only one specimen and it is incomplete. There is no neck and only a lower jaw. It's family classification is still questionable. At that size in a climate hotter then todays there wouldn't be much need for feathers. Its not a true raptor? well, his skull looks quite oviraptorian to me...or in any case maniraptorian and undoubtely coelurosaurian. In my eyes it would be extraordinary if such animal (or big therizinosaurids for that matter) lacked feathers or proto feathers. Why Moa bird needed feathers, given his size? but he had...  We don't have a skull just the lower jaw. And the biggest Giant Moa was at best only a third the size of the Juvenile Gigantoraptor. Only Dromaeosaurs are true raptors. en.wikipedia.org/wiki/Dromaeosauridae |
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Post by arioch on Apr 20, 2011 3:49:00 GMT
Well aren´t predatory birds raptors too?  But you´re right, it might have lacked feathers, that´s always a possibility...unlike dromies who had them for sure. Anyway...I present you another sketch in the first stages: Mapusaurus devouring a young iguanodontid.  Uploaded with ImageShack.usI know its very dirty, I wasn´t sure about the approach and drew over a lot, but I think you get the idea of what´s gonna be. I´m going to clean up a bit with photoshop or starting over on a new sheet, I´ll see. |
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Post by Blade-of-the-Moon on Apr 20, 2011 5:42:25 GMT
Honestly the way the pics you have there show is the way I had planned on doing it...but if their hands are rotated from the " bunny " position as they are now to a " clapping " position..where does that put the finger ? Pointing towards the back feet ? That Mapu is killer ! lol I bet it could just swallow that kill whole if it wanted to.. ;D |
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Post by hkhollinstone on Apr 20, 2011 6:39:15 GMT
wow  awesome drawing! |
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Post by Griffin on Apr 20, 2011 22:22:48 GMT
Yeah there is a chance hadrosaurs had just one mit with even the pinkies fuzed in there. Its more likely that iguanodon and its relatives had functional pinkies.
Just don't use the term "raptor" when referring to anything other than a bird of prey. Its much less confusing.
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Post by arioch on Apr 20, 2011 23:58:53 GMT
Glad you like it! While I´m redoing the whole thing here´s my Tyrannosaurus 1.5, with protofeathers and defending her baby:  Uploaded with ImageShack.us |
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Post by Griffin on Apr 21, 2011 1:56:00 GMT
Not sure if her ankle could bend that way but cool none the less. Really like the feather style.
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Post by arioch on Apr 21, 2011 5:24:31 GMT
Thanks!
I think the right leg is in a bit weird position too. Theoretically she is sprawling and turning to her left to face the adversary, but I didn´t get the angle right.
Do you think proto feathers should be attached to the finger like in dromaeosaurids?
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Post by EmperorDinobot on Apr 21, 2011 10:20:48 GMT
Those are really nice.
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Post by arioch on Apr 22, 2011 0:35:59 GMT
Tarbosaurus 1.5, a bit more "realistic"  Uploaded with ImageShack.usAnd Mapusaurus/giganotosaurus redone (I believe some experts consider they´re the same animal?)  Uploaded with ImageShack.us |
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Post by Griffin on Apr 22, 2011 1:23:50 GMT
Also another little nit picky thing I can mention is the claws on the feet shouldn't be so sharp. They should probably be much more dull since they are constantly being used while walking. Think of an ostrich foot claw.
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Post by arioch on Apr 22, 2011 1:34:21 GMT
Yep I thought the same when I finished it.
I was thinking on an eagle preying on a dead bunny for the pose. Maybe I unconsciously drew the feet like that because of the inspiration . ;D
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Post by neovenator08 on Apr 22, 2011 8:01:15 GMT
Ooh, I like the new Tarbosaurus! ;D
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Post by sid on Apr 22, 2011 10:05:04 GMT
Great sketches!
Regarding the arm protofeathers in T.rex & company... If they had 'em, they probably didn't cover their fingers as in raptors; their arms were scaly or, at least, with some very simple fuzz. Remember, tyrannosaurids' arms, being that short, weren't something they could use for display or brooding ;D
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Post by arioch on Apr 22, 2011 15:06:33 GMT
Well Alvarezsaurids couldn´t use feathers for display too. ^_^
But yes I believe the covering wouldn´t be too profuse. Otherwise there´s no way they could keep their arm feathers clean -mouth can´t reach them- unless they took a long bath everyday.
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We don't have a skull just the lower jaw. And the biggest Giant Moa was at best only a third the size of the Juvenile Gigantoraptor. Only Dromaeosaurs are true raptors. 
awesome drawing!
