Periotic bone

{{Short description|Bone found in mammals}}{{More citations needed|date=February 2024}}

The periotic bone is the single bone that surrounds the inner ear of birds{{Cite journal |last=Coues |first=Elliott |date=1883 |title=A Hearing of Birds' Ears.-- III |url=https://www.jstor.org/stable/1758734 |journal=Science |volume=2 |issue=39 |pages=586–589 |issn=0036-8075}} and mammals. It is formed from the fusion of the prootic, epiotic, and opisthotic bones, and in Cetacea forms a complex with the tympanic bone.{{Cite journal |last=Tsur |first=Itamar |last2=Shaviv |first2=Nir |last3=Bronstein |first3=Israel |last4=Elmakis |first4=David |last5=Knafo |first5=Oshri |last6=Werner |first6=Yehudah L. |date=December 2019 |title=Topography of vibration frequency responses on the bony tympano-periotic complex of the pilot whale Globicephala macrorhynchus |url=https://linkinghub.elsevier.com/retrieve/pii/S0378595518306166 |journal=Hearing Research |language=en |volume=384 |pages=107810 |doi=10.1016/j.heares.2019.107810|url-access=subscription }}