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Obturator process : ウィキペディア英語版 | 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.〔Romer, Alfred S. (1923) "The Pelvic Musculature of Saurischian Dinosaurs" "Bulletin of the American Museum of Natural History" Vol. XLVIII 48:605-617〕 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.〔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〕 See proximodorsal process ==References==
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