The skull is dicondylic, with 10 pairs of cranial nerves is present in 

Amphibians have a dicondylic skull and ten pairs of cranial nerves. The dicondylic skull has two articulatory condyles that connect it to the body. 
Cranial nerves are nerves that originate in the brainstem and emerge through skull holes to the periphery of the head. 
Fish and amphibians have ten pairs of nerves, while reptiles, birds, and mammals have twelve pairs.