Sticks and circles for the legs. The first circle is the hip joint. The stick under the hip is the femur, the thigh bone. The following circle represents the knee joint, and the stick under the knee is the lower leg. The next circle is the ankle joint (including the heel), and finally the lower bar is the foot, divided in two segments: the upper is the foot/metatarsals, and the lower segment are the toes/phalanges (mind you, the dinosaurs walked in their toe bones, just as the birds). The height from the hip to the ground is a bit less than 1/3 of the total spine lenght. The knees are placed aproximately at 1/2 of the height from the ground.