human_reference_atlas Homo sapiens innominate bone http://upload.wikimedia.org/wikipedia/commons/8/8b/Gray341.png innominate innominate bone hip bone os innominatum pelvic bone os coxa coxal bone in FMA this is a paired structure. NCITA has 'pelvic bone' but this is the *superclass* of ilium/ischium/pubis. The MA class 'pelvis bone' is actually a superclass of 'pelvic girdle bone' and caudal/sacral vertebra. The hip/pelvic bone/basipterygium first appears in fishes, where it consists of a simple, usually triangular bone, to which the pelvic fin articulates. The hip bones on each side usually connect with each other at the forward end, and are even solidly fused in lungfishes and sharks, but they never attach to the vertebral column FMA:16585 os coxa basipterygium currently this class is restricted to exclude the teleost bone as the definition mentions ilium, ischium and pubis. In future we may add a grouping class for girdle bones that supports the appendage GAID:205 os coxa AS A fused bone consisting of the ilium, ischium and pubis. Together with the sacrum and coccyx, it comprises the pelvis. [WP,modified]. uberon UBERON:0001272 SCTID:361776002 bone of pelvic girdle Wikipedia:Hip_bone os coxae pelvic girdle bone/zone flat bone