Paired cartilage bone that contacts the autosphenotic anteriorly, the parietal dorsally, the prootic ventrally, 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. [ GOC:mh ORCiD:0000-0001-9114-8737 ]
Synonyms: autopterotic
Term information
Term relations
- dermal bone
- endochondral bone
- pterotic
- part of some otic region
- part of some chondrocranium
- part of some neurocranium
- overlaps some frontal-pterotic joint
- part of some dermatocranium
- develops from some auditory capsule
- existence starts during or after some larval:days 14-20