cephalic spine

Term ID

UBERON:0017621

Synonyms

• cephalic spines

Definition

One of the spines, probably denticle derivatives, occurring singly or in pairs just behind the orbit on the cheek area in some fossil sharks. May have occurred only in males and may have served to hold the female during copulation, e.g. in the Jurassic genera Hybodus, Asteracanthus and Acrodus. http://www.briancoad.com/dictionary/complete%20dictionary.htm

References

Ontology

Uberon Ontology