Topic summary
Jugal
Extracted from the Wikipedia article Jugal bone.
Taxonomic distribution
The jugal is present in placoderms as the suborbital plate. Chondrichthyans have lost all dermal bone, including the jugal. In actinopterygians, there is a series of infraorbital bones below the eye, of which the third infraorbital may be the jugal. In mammals, the jugal is often called the zygomatic.