As a culmination of efforts over the last years. our knowledge of the embryonic origins of the mammalian frontal and parietal cranial bones is unambiguous. Progenitor cells that subsequently give rise to frontal bone are of neural crest origin. while parietal bone progenitors arise from paraxial mesoderm. https://www.spidertattooz.com/Zenith-El-Primero-36-000-VpH-03-2150-400/