Obturator process

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. In birds the muscles are called the M. obturatorius lateralis and M. obturatorius medialis. They insert on the greater trochanter of the femur.[2] See proximodorsal process

References

  1. ^ Romer, Alfred S. (1923). "The Pelvic Musculature of Saurischian Dinosaurs". Bulletin of the American Museum of Natural History. Vol. 48. pp. 605–617.
  2. ^ Hutchinson, John R. (2001). "The evolution of femoral osteology and soft tissues on the line to extant birds (Neornithes)". Zoological Journal of the Linnean Society. 131: 169–197.

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