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legendguard [2015-04-03 04:17:04 +0000 UTC]

Alright, I watched the video and immediately noticed a few errors. The bat wing looks good. however, I noticed several anatomical mistakes in the pterosaur wing.

The first thing I noticed is that the pteroid is completely absent. The pteroid was a slender bone (unique to pterosaurs) that connected to the wrist and helped support the propatagium. it should be located on the carpals (the preaxial carpal to be precise) and should be pointed towards the body. another thing I noticed is that the non wing fingers are held in the wrong position; they should be twisted in the opposite direction of the wing finger. the first wing phalanx should also be broader where it connects to the metacarpal, and the humerus should have a "knob" at the base next to where it connects to the scapulo-coracoid. A good reference for the wing skeletal (and muscle attachments) would be this . A good reference for the wing membrane and limb orientation can be found here  (notice how when on the ground the fingers twist backwards towards the feet, not away).

Anyways, sorry to get nit-picky. I hope this helps. Also, just a heads up, when researching pterosaurs avoid anything pertaining to ReptileEvolution.com, The Pterosaur Heresies, or David Peters, as his works are farce and his methods (i. e. the Digital Graphic Segregation (DGS)) are unreliable at best (see here ). Unfortunately his works flood most search results and can cause a lot of confusion, so always check to make sure it's not his.

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Edisto [2013-05-29 23:39:06 +0000 UTC]

Very helpful, thanks! I don't know if anyone's mentioned it yet, but that "extra bone" in the pterodactyl arm is actually a metacarpal--the palm bone. c:

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