In amphistyly, the palatoquadrate has a postorbital articulation with the chondrocranium from which ligaments primarily suspend it anteriorly.
2.
In Chondrichthyes and Agnathans, the occipital does not form as a separate element, but remains part of the chondrocranium throughout life.
3.
In humans, the chondrocranium begins forming at 28 days from Embryologically, the chondrocranium represents the basal cranial structure, and lays the base for the formation of the endocranium in higher vertebrates.
4.
In humans, the chondrocranium begins forming at 28 days from Embryologically, the chondrocranium represents the basal cranial structure, and lays the base for the formation of the endocranium in higher vertebrates.
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