the pubis or pibic bone
The coxal bone is part of the hip joint.The longest bone in the body is the femur, thigh bone, which is a ball and socket joint with the hip joint or coxal bone.
I think the sacrum and coxal bone are joined at the sacroiliac joint.
ball and socket
Iliac Crest This is the superior margin of the coxal bone.
pubisThe hip bone, innominate bone or coxal boneis a large, flattened, irregularly shaped bone, constricted in the center and expanded above and below. ...The anatomical term for hip bone is the coxal bone or the OS coxae
The pubis, or pubic bone, is the most anterior part of the coxal bone (hip bone.)
Ischium
The ilium, ischium, and pubis all fuse to form the coxal bone. The coxal bone is more commonly know as the hip bone.
The hipbones are united anteriorly at a joint called the pelvic symphysis
coxal bone (hipbone)
The saccrum
Ilium