FIG. 7 in Mystacodon selenensis, the earliest known toothed mysticete (Cetacea, Mammalia) from the late Eocene of Peru: anatomy, phylogeny, and feeding adaptations

FIG. 7. — Comparative reconstruction of the dorsal (A, C, E) and ventral (B, D, F) views of the skull of: A, B, Cynthiacetus peruvianus; C, D, Mystacodon selenensis; E, F, Llanocetus denticrenatus. Not to scale; drawings scaled to same bizygomatic width. Coloured shaded area on the ventral views are reconstructions of the palatal surface. The reconstruction of the palatal surface of Llanocetus is more hypothetical than that of Mystacodon since the anterior region of the rostrum is missing.