Clivus

The caudal cranail fossa (Fossi cranii caudali), the floor of the cerebellar cavity, shows the dorsal surface, excavated, of the basilar part of the cerebellar cavity, forming the clivus -formerly called the 'basilar gutter'.

On each side, we can see caudally the opening of the canal of the hypoglossal nerve (Canalis nervi hypoglossi)-formerly called 'the condylian canal' and more laterally, in Bulls and Dogs, a vascular orifice opening in the condylar canal.