otic notch

Term ID

UBERON:0013222

Synonyms

Definition

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. http://en.wikipedia.org/wiki/Otic_notch

References

• Otic:notch

Ontology

Uberon Ontology