In fish, the pelvic fins bear no weight and the pelvic girdle is not attached to the axial skeleton. In amphibians, the pelvic girdle is attached to one vertebra. In the early reptiles, the pelvic ...

When a terrestrial vertebrate stands, its body hangs from the vertebral column which supports the weight ... Rhipidistians had fleshy fins with axial skeleton. In amphibians, the skeleton has been ...