Labels:animal | mammal | fossil | bone | skeleton | skull | text | dinosaur OCR: ILIUM This was the main bone in the dinosaur's hip. THIGH BONE Bumps on the back of the femur, or thigh bone, indicate where tendons were attached to the bone and muscles connecting the femur to the tail vertebrae. HIP JOINT Huge hips supported the thigh, shin, and foot bones. ISCHIUM Muscles ran between the ischium (lower pelvic bone) and the thigh bone. When flexed, these muscles pulled KNEE JOINT the leg backward The ilio tibialis muscle joined the hipbone to the FORWARD-SLOPING PUBIS shin. When this large The angle of the pubis shows muscle was flexed, the which major group a dinosaur knee joint was raised. belongs to. Tyrannosaurus is a saurischian (lizard-hipped) SHIN BONE dinosaur. The shin bone is also known as the tibia. ANKLE JOINT The ankle, or tarsus, was raised by the tibialis-tarsus muscle, which ran between the shin and the ankle.
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