OBO_REL:part_of (UNDECLARED) extrascapula Dermal canal-bearing bone placed at the dorso-posterior region of the skull roof, lying on the posterior region of the pterotic and parietals, or the pterotic and epioccipital, or on the pterotic, epioccipital and occipital bones. TAO:0000663 TAO:0001413 When it is present, the paired series of extrascapular bones may include one pair or two pairs or two pairs plus a median one. The most lateral is named lateral extrascapula and is the bone where the intersection of the otic, postotic and extrascapular or supratemporal canals occur. The medial and median extrascapulars carry the extrascapular or supratemporal canal. extrascapular extrascapular bone scale bone supratemporal tabular teleost_anatomy dermal bone pectoral girdle skeleton