English: A, CGM 60567, right dentary with crowns of deciduous milk teeth dP3–4 in place and the crown of M1 beginning to erupt (specimen is in ontogenetic stage 2 of 13 tooth eruption and dental wear stages of Uhen [29]). B, UM 83902, right dentary with alveoli for anterior premolars, crowns of dP3–4 in place, roots of M1, and the crown of M2 beginning to erupt. Uhen [29] classified this specimen, from the overlying Birket Qarun Formation in Wadi Al-Hitan, in his ontogenetic stage 4). C, CGM 60562, supraorbital process of a right frontal. D, CGM 60569, supraorbital process of a second slightly smaller right frontal. E, CGM 60577, right squamosal. F, CGM 60574, left tympanic bulla. Note that the CGM 60567 dentary is missing the anterior portion and mandibular condyle, and all of the other cranial elements show evidence of breakage or disarticulation. Abbreviations: c, mandibular condyle; Dent, dentary; dP3-dP4, lower deciduous premolar 3–4; Fr, frontal; M1-2, lower molar 1–2; pgp, postglenoid process; pop, postorbital process; ppt, posterior process of tympanic; punct, puncture bite mark on frontal; sp, sigmoid process; Sq, squamosal; Ty, tympanic; zp, zygomatic process.