1828 R. Knox tr. H. Cloquet 60 The first part of this line is named the Petro-Occipital Suture [Fr. suture pétro-occipitale].
1912 8 260 The basilar portion has on each side a cleft directed transversely inwards from the petro-occipital fissure.
1995 196 747 The occipitomastoidal, petro-occipital, and spheno-occipital synchondroses remained partially open into the teenage years.