Fig. 2 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives

Fig. 2. Petrosals in situ in several artiodactylans. A. Dorsal view of skull of Antilocapra americana with posterior part of calvarium removed to illustrate the in situ orientation of the petrosal (right and left petrosals in situ; left petrosal outlined with dashes). The surface with the internal acoustic meatus is