Fig. 6.

Digital endocasts of bony labyrinths of (A) odontocete and (B–K) mysticete cetaceans in anterior, lateral, dorsal, and vestibular view for comparison with the archaeocete Zygorhiza (Fig. 2). Labyrinths for most mysticetes are from the right side of the body, but those from the left side (D, G, H, and J) are reversed for ease of comparison with the labyrinth of Zygorhiza in Fig. 2. Parts (A) and (H) are modified from Ekdale (2013: figs 28 and 30). Anatomical abbreviations are listed at the end of the Materials and methods section. [Note: Figure constructed in two parts].