Parietal bones separated by the supraoccipital; prootic and exoccipital separated by the enlarged opisthotic. Pectoral arch suspended from the skull; no mesocoracoid arch.
2
The proOtic encloses between it and the lateral occipital the fenestra ovalis, into which fits the columella of the ear.
3
The squamosals form part of the cranial wall, being firmly wedged in between the quadrate, prootic and occipital bones.