One part of the skeleton reconstruction I found challenging was the
pelvis. The drawings of Madsen (1976) are complete but not easy to
follow. Each sacral vertebrae and rib is shown separately from front,
back and side. However, how they all articulate is not shown and I struggled to
understand how all the bones joined up. So I fitted them together virtually on the computer screen.
Each of Madsen's lateral drawings was scanned, rotated, cleaned, and
scaled into separate layers of a PhotoShop document. I could then
experiment with how to fit them together and also hide/show
different bones. The sacral ribs are hard to see, so these were
recolored for contrast.