Fig. 2 in Composition of the canid auditory bulla and a new look at the evolution of carnivoran entotympanics

Fig. 2 Schematic reconstruction of entotympanic ossifications in the canid auditory bulla. a–g Consecutive states within the first five postnatal weeks; posteromedial and slightly ventral views of left auditory bulla (see Fig. 3 for similar aspects of the skull). Non-bullar bones are not shown. Abbreviations: AC, anterior carotid foramen; AD, anterodorsal intrabullar septum; AE, anterior caudal entotympanic; PC, posterior carotid foramen; PD, posterodorsal intrabullar septum; PE, posterior