Endochondral bone that sutures with the pterosphenoid anteriorly, the prootic ventrally, the frontal bone dorso-medially, and the pterotic dorso-posteriorly. Occasionally the sphenotic sutures with the parietal bone. The sphenotic separates the orbital from the otic region. The sphenotic bears a large antero-lateral or lateral or ventro-lateral process that borders the postero-dorsal margin of the orbit. The sphenotic is a paired bone.
Comment:
The lower edge of the sphenotic may contribute to the hyomandibular facet depending on the fish group.; [provenance-note] "This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon" xsd:string {source="http://purl.obolibrary.org/obo/tao.owl"}