The sprawling-upright transition across mammal evolution, showing changes in posture and limb bone shape. The transition from sprawling (reptile-like) to more upright (parasagittal) posture and ...
http://onlinelibrary.wiley.com/doi/10.1111/jeb.12161/abstract,http://onlinelibrary.wiley.com/store/10.1111/jeb.12161/asset/jeb12161.pdf?v=1&t=hgr3iprp&s ...