Prove that the musculoskeletal system of mammals is better than reptiles?

The musculoskeletal system of mammals is more perfect than that of reptiles, since:

– the facial and volumetric parts of the skull received better development (as a result of an increase in the brain and its greater development);

– the ribs are connected to the sternum by means of the sternum, thus ensuring the presence of the chest;

– in the embryonic period, crow’s bones are attached to the shoulder blades;

– the palatine bones, which separate the oral cavity from the nasal cavity, received more development.

However, the skeleton of mammals and reptiles is very similar (four limbs and a tail).