otic notch

Otic notches are invagination in the posterior margin of the skull roof, one behind each orbit. Such notches are found in labyrinthodonts and some of their immediate ancestors, but not their reptilian descendants. The presence or absence of the otic notches is one of the traits used to separate the amniotes from the amphibian grade tetrapods.

Tipo Organ
Estrutura pai zone of bone organ

Perguntas frequentes

What is the otic notch?
Otic notches are invagination in the posterior margin of the skull roof, one behind each orbit. Such notches are found in labyrinthodonts and some of their immediate ancestors, but not their reptilian descendants. The presence or absence of the otic notches is one of the traits used to separate the

Estruturas relacionadas

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.