This is the most inferior of the fossae.
The parapterygoid fossae, which are located behind the palate at the level of the molars, are excavated somewhat above the level of the palate.
The auditory bullae are large and dense but, there are no associated pterygoid fossae or air sinuses.
The nasal opening of a gharial is smaller than the supra-temporal fossae.
Other ideas have been suggested for the formation of fossae.
The sensory fossae and the auricle grooves are supplied with many nerve endings.
Fossae are believed to be the result of a number of geological processes, such as faulting or subsidence.
These processes form notches that may be tympanic fossae, cavities of the middle ear.
