1.Forms the whole skull in Cyclostomata, Elasmobranchii and Holocephali.
软骨构成圆口纲,板鳃亚纲与全头鱼亚纲的整个的头盖骨。
2.On the rank that reachs mummy from cranium of trilobite, dinosaurian egg, pithecanthrope, crockery, remains, get through gives birth to the channel that is born not to cease.