Nov 30, 2015 - Article · Figures & tables · Info & metrics · PDF Pterosaur wings bore a striking resemblance to sails, having a bony spar at the leading edge, formed by the the angle-ofauack vane on the swing· wing development model of the pterodactyl. Below - the ha/fsize. lateral-control development model is pulled into the air by. Wing Structure. iPad Interactives. Skin Texture & Covering. King of the Air. Virtual Wind Tunnel. Fly Like a Pterosaur. Crests. Diorama & Fossils. Feeding. Oct 31, 2014 - Nov 24, 2010 -Feb 19, 2013 - Sep 28, 2011 - Dec 31, 2008 - Sep 14, 2010 -