part of part of overlaps overlaps develops from develops from neurocranium chondrocranium endochondral bone otic region dermatocranium cartilaginous otic capsule dermal bone neurocranium bone pterotic Endochondral bone that articulates with the autosphenotic anteriorly, the parietal dorsomedially, the prootic ventrally (and the intercalar occasionally), and the epiotic and exoccipital posteriorly. The pterotic encloses the horizontal semicircular canal of the inner ear. The lower edge of the pterotic contributes to the hyomandibular facet. The pterotic is paired. This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon ZFA:0000576 UBERON:2000576 autopterotic frontal-pterotic joint