part of part of derived from ancestral fusion of derived from ancestral fusion of palatine bone vomer parasphenoid roof of mouth pterygoid bone ectopterygoid bone palatal part of dermatocranium primitive palate Early tetrapod possessed a primary palate that included the vomer, pterygoid, parasphenoid, palatine and ectopterygoid bones. Therapsid evolved a partial secondary palate formed by the medial extension of the premaxilla and maxilla. Mammals have a secondary palate that, in addition to extensions of the premaxilla and maxilla, includes part of the palatine bone[VHOG] Anatomical cluster that is the upper roof of the mouth that is underlain by bones such as the parasphenoid, vomer, metapterygoid, orbitosphenoid.[TAO] Roof of the mouth lined with ciliated epithelium.[AAO] Roof of the buccal cavity, formed from the fusion of vomer, pterygoid, parasphenoid, palatine, ectopterygoid. Wikipedia:Primitive_palate TAO:0002093 ZFA:0005509 UBERON:0012316 AAO:0010535 palate