Question

Why is.skull.called dicondylic in nature?

Answer 1

Because it contains two occipital condyles. Basically, when expressing occipital condyles they are unsersurface protuberances which are located at the occipital lobe of the skull. They are bean shaped or kidney-shaped positioned and the anterior ends are closer when both of them are into the proximity of the posterior ends. In humans or by the species name Homo sapiens sapiens there are two occipital condyles or they are dicondylic, so they are present in pairs, hence, they are called as dicondylic.

Answer 2

this is your answer -

When skull attached to body by two articulatory condyles, it's known as Dicondylic. These types of skull have two occipital condyles which connects to Atlas (first vertebrae), therefore known as Dicondylic skull.
Human skull is the best example having Dicondylic skull.

hope it helps.