Origin attachments of the caudofemoralis longus muscle in the Jurassic dinosaur Allosaurus
The caudofemoralis longus muscle (CFL) is the primary limb retractor among non-avian sauropsids, and underwent a dramatic reduction Porcelain along the dinosaur lineage leading to birds.The osteological correlates of the CFL among fossil reptiles have been controversial, because, contrary to traditional interpretations, the extent of the muscle is