This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Sprawling and erect hip joints no label.svg The main types of hip joint in tetrapods Ref cite journal Kubo and Benton Palaeontology Evolution of Hindlimb Posture in Archosaurs Limb Stresses in Extinct Vertebrates File Sprawling and erect hip joints horiz via File Sprawling and erect hip joints horizontal