Step 15: Draw the neck under the pteranodon's head by using the initial lines as guides. Make the neck thinner as you darken the lines.
Step 16: Use the initial lines above the body as guides to draw the top part of the pteranodon's wings. Follow the path of the guide and make the arm portion thicker. Draw the claws using small curved lines near the middle of the wing. Draw the top of the wing on this side of the body the same way. First follow the guide and make the shape of the arm thicker. Then draw the three small claws using three short curved lines near the middle of the wing.
Step 17: Draw the rest of the pteranodon's wing using the initial lines as guides. Follow the basic path of the guide to create the front portion of each wing. The tip of the wing is actually the fourth digit of the hands. The pteranodon's "pinky" finger should come to a point at the end. Darken the other guides to finish the shape and structure of the pteranodon's wings. Add a small line above the shoulder to the wing on this side. Follow the path of the guide for the bottom part of the wing but curve the line a bit more.
Step 18: Use the lines under the body as guides to draw the pteranodon's legs. Follow the basic path of the guides and make the top part thicker. Add the claws at the bottom using curved lines. Draw the leg on the other side of the body the same way but make it smaller because of the perspective.
Step 19: Use the remaining lines and shapes as guides to draw the rest of the pteranodon's body. Add some lines within the shape of the body to emphasize the structure of the chest.