1833 R. Dunglison II. 97/1 Occipito-axoid Articulation is the connexion of the occipital bone with the axis or second vertebra.
1862 (U.S. ed. 2) xxxii. 188 The Posterior Common Ligament is situated within the spinal canal, and extends along the posterior surface of the bodies of the vertebræ, from the body of the axis above, where it is continuous with the occipito-axoid ligament, to the sacrum below.