FIG. 28 in The anatomy and phylogenetic affinities of Cynthiacetus peruvianus, a large Dorudon-like basilosaurid (Cetacea, Mammalia) from the late Eocene of Peru

FIG. 28. — Dental morphologies observed in Cynthiacetus peruvianus and other basilosaurids: A, conical single-rooted caniniform tooth (left c1 in labial view); B, large, triangular and double-rooted premolar (right p4 in lingual view); C, small, blunt and double-rooted upper molar (right M1 in lingual ciew); and D, small, triangular and double rooted lower molar (lacking accessory denticles in the mesial margin). Abbreviations: ac.dn, accessory denticle; cusp, central cusp (homologous of the paracone in the upper teeth and of the protoconid in lower teeth); mlr, mesiolingual ridge; str, vertical striations, abundant in caniniform teeth. All drawings at same scale.