intramandibular

— This identification is further supported by additional synapomorphies such as ossified chevron-shaped palpebrals [25 ]; Meckelian canal subdivided by intramandibular septum near the caudal end of the dentary tooth row [25 ] (S3 Fig ); developing teeth single-cusped [28 ] (Fig 4C ), some with a somewhat recurved crown [24 ]; and no more than 13 teeth in the maxilla [26 ] (Fig 4C ).