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E-Smaniotto — Restore Folded DinoWings - Corrections
Published: 2014-02-07 10:13:45 +0000 UTC; Views: 8885; Favourites: 184; Downloads: 43
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Description
It seems to me that I have never hidden the fact that I am not perfect. I know, I’m almost there. But alas, it can happen to make some mistakes.
Among the most popular articles and diagrams I’ve written, my post on how to portrait the wings of the members of Aviremigia have had a great success (first part : ktboundary-smnt2000.blogspot.i… ; second part: ktboundary-smnt2000.blogspot.i… ; third part: ktboundary-smnt2000.blogspot.i… ). This is understandable: the wings of birds are among the most difficult animal parts to draw accurately, since they require an adequate understanding of their structure and variety, and this problem is also reflected in artistic depictions of extinct species, which may have feathered limbs more or less similar to those of their relatives today. This common problem pushed me to do a quick and simple guide on how to illustrate them. Despite the good will, the discoveries made in recent years and the anatomical oversights dictated by the lack of experience (J. Campbell- Smith, of all people, is the one who inspired me to revise everything, and for that I thank her very much) required a considerable restoration work that took me more a lot of time, but I hope that the results are satisfactory.
Models: Archaeopteryx and a generic maniraptoriform (based on Anchiornis)
Orange: lesser coverts
Dark orange: elongated lesser coverts
Light blue: median coverts
Blue: greater coverts
Dark blue: secondaries
Light brown: median primary coverts (lost in modern birds)
Brown: greater primary coverts
Red: primaries
Green: scapulars (speculative)
Dark green: tertials (speculative)
Alula not present, but you can add it on the first digit.
Don't miss the other tutorials: smnt2000.deviantart.com/art/Re…, smnt2000.deviantart.com/art/Re…
Full post on my blog: ktboundary-smnt2000.blogspot.i…
Ps: sorry for the colours' quality. Bad scanner.
References
J. Campbell-Smith. Links: sagekorppi.deviantart.com/ , corvidblog.tumblr.com/
Scott Hartman
Matthew P. Martyniuk. Link: dinogoss.blogspot.it/2013/09/y…
Primitive Wing Feather Arrangement in Archaeopteryx lithographica and Anchiornis huxleyi. Nicholas R. Lonrich, Jakob Vinther, 2012.
Evolution: Taking Wing with Weak Feathers. Xing Xu, 2012.
Plumage Color Patterns of an Extinct Dinosaur. Quanguo Li, Ke-Qin Gao, Jakob Vinther, Matthew D. Shawkey, Julia A. Clarke, Liliana D’Alba, Qingjin Meng, Derek E. G. Briggs, Richard O. Prum, 2010.
Structure and Function of hindlimb feathers in Archaeopteryx lithographica. Nicholas R. Longrich, 2006.
The asymmetry of the carpal joint and the evolution of wing folding in maniraptoran theropod dinosaurs. Sullivan, C., Hone, D., Xu, X., & Zhang, F. (2010).
Animals Real and Imagined: Fantasy of What Is and What Might Be, by Terryl Whitlatch (Editor), Gilbert Banducci (Editor)
The Prophet and the Liar, Chapter 03: Animal Anatomy. Link: theprophetandtheliar.tumblr.co…
External Anatomy of a Bird. Link: swartzentrover.com/cotor/Photo…
Related content
Comments: 31
where do the secondaries go? actually, where does the rest of the arm go on this?
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There's the colour chart which indicates the major feather groups and if you go to the full article you'll find a diagram of a folded bird wing. You can also use the open wing diagram for help.
If necessary I'll provide a version with visible arm bones but only when I'll have the time to get to it
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what i ment is it looked very strange when putting a raptor wing bone folded over it
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Try to put the humerus horozontally, that should work
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Thanks, and I finally figured it out when I looked at the description of Emily's "The Terrible Claw". The hand doesn't seem to be fully flexed. Fix that. It bothers me.
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What are you trying to say? The hand isn't supposed to be fully flexed.
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I mean as much as it could. Looks like the hand is dangling now that I see how the arm folded.
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The thing is that the hand is folded as much as it can.
Most non-avian theropods have a limited folding rage. Look at this for example: 3.bp.blogspot.com/-DbVJIPJYX8I…
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That would mean the radius and ulna are diagonal, and it doesn't look it on the diagram.
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Radius and ulna are diagonal
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So the arm is like that? Now It makes sense.
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"your wings look more akin to microraptor than a dromaeosaur"
Microraptor is a dromaeosaurid so I don't understand what do you mean. It's like saying: "your wings look more akin to a shrike than a crow".
"Will you make a dromaeosaur version without wing like feathers on the humerus"
I will not do it because I think that humeral feathers were indeed present. However if you think that this feature is too speculative you can use the same diagram without drawing those kind of feather areas (scapulars, tertials and so on)
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Would this one or this: smnt2000.deviantart.com/art/Re…
apply to Velociraptor and other dromaeosaurs?
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In both the descriptions they say that this is the correct one, so yeah, it would apply on dromaeosaurids too.
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So their wings were this big? The more you know...
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Big arms=big wings. Small arms=small wings. It's as simple as that.
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Happy to hear you say that
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Now, this will come in handy. I always have such trouble visualizing exactly how the feathers overlap on a folded arm/wing.
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Glad to hear that this will be usefull
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Even if you don't include it in the diagram, probably worth noting somwhere that some dinosaurs have an alula.
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Yeah, I decided to not include the alula because we know very little about it. It seems that only Microraptor had it, but that doesn't mean that other species didn't have it. If needed, i might do a version with it, but I think it's useless since you have to do just some feathers on the first digit and nothing else.
Still, thanks for the advice!
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I think just including in the artist's comments that some dinosaurs have one will suffice. It just should be noted somewhere.
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Noted! I write about it on the blog, but I'll write here too!
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