petrosal bone
petrous bone

Proboscidea and Sirenia are linked together based on auditory characters in their petrosal bones, but this link can be a homoplasy.

It was high up, on the right side of his head, in the temple, but back rather far, almost far enough to drive the petrosal bone through the brain.

The petrosal bone forms a relatively large portion of the roof of the tympanic cavity, which houses the middle ear; parts of the petrosal are more developed in P. madagascariensis.

Allometric measurements on the bony labyrinth of BAC-208, a fragmentary cranium that preserves a complete, undeformed petrosal bone suggest that Oreopithecus moved with agility comparable to extant great apes.

It lies above the malleolar folds attached directly to the petrous bone at the notch of Rivinus.

It is directed superiorly, as per its nomenclature, and posteriorly, nearly parallel to the posterior surface of the petrous bone.

In radiology, oblique view of skull, to establish better views for petrous bone, bony labyrinth and internal auditory canal.

The tumor involves the endolymphatic sac, a portion of the intraosseous inner ear of the posterior petrous bone.

The team doctor revealed that he had a compound fracture to his right collarbone, fractures in his left petrous bone, right cheekbone, maxillary sinuses and sphenoid bone, and also received pulmonary compressions, abrasions and suspected rib fractures.