part of part of in taxon has muscle origin has muscle origin has muscle insertion has muscle insertion Archosauria Aves Homo sapiens Felidae hindlimb hindlimb bone hindlimb muscle caudofemoralis Wikipedia:Caudofemoralis M. caudofemoralis caudofemoralis muscle The caudofemoralis (from the latin cauda, tail and femur, thighbone) is a muscle found in the pelvic limb of mostly all animals possessing a tail, since it is a synapomorphy appeared on the Archosauria clade. It is thus found in felids (cats) and Mustela ('Weasels'), but also on crocodiles and birds. EMAPA:36226 UBERON:0013221 The Caudofemoralis acts to flex the tail laterally to its respective side when the pelvic limb is bearing weight. When the pelvic limb is lifted off the ground, contraction of the Caudofemoralis causes the limb to abduct and the shank to extend by extending the hip joint (acetabulofemoral or coxofemoral joint) transverse process of caudal vertebra