The obturator process is an anatomical feature on the pelvis of archosaurs.
It is a raised area of the ischium bone of the pelvis.
[1] It is the origin of muscles that attach to the femur and aid in running.
These muscles are called M. pubo-ischio-femoralis externus 1 and 2 in crocodylians.
They insert on the greater trochanter of the femur.