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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.

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Тип Organ
Родительская структура zone of bone organ

Frequently Asked Questions

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

References

  1. UBERON — UBERON:0013222 Cross-species anatomy ontology (EMBL-EBI Ontology Lookup Service)
  2. Wikipedia — otic notch Encyclopedia article (verified cross-reference)

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Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

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