The minimus has similar functions and both muscles are inserted onto the greater trochanter.
Her greater trochanter, however, was clearly derived, being short and human-like rather taller than the femoral head.
In archosaurs and especially in dinosaurs, the intertrochanteric fossa is highly developed as both the internal/lesser trochanter and the greater trochanter are better developed.
The lateral ridge is very rough, and runs almost vertically upward to the base of the greater trochanter.
Surrounding structures such as the tensor fasciae latae and the greater trochanter may also be affected.
The iliacus originates on the iliac fossa to join psoas at the iliopubic eminence to form the iliopsoas which is inserted into the lesser trochanter.
The superior border is short and thick, and ends laterally at the greater trochanter; its surface is perforated by large foramina.
The iliopsoas runs across the iliopubic eminence through the muscular lacuna to its insertion on the lesser trochanter of the femur.
