Fig. 3
From: Wonky whales: the evolution of cranial asymmetry in cetaceans
Time-calibrated phylogeny for sampled cetacean species indicating magnitude of cranial asymmetry (∑pspec). The labels highlight the following points: (1) archaeocetes, (2) mysticetes, (3) the origin of Neoceti (~ 39 Mya) [26], (4) early odontocetes including the xenorophids, (5) odontocetes, (6) the highly asymmetrical Platantista gangetica, (7) the highly asymmetrical monodontids, and (8) the highly asymmetrical Physeteroidea. The full data set (n = 162) is used. Phylogeny based on Lloyd and Slater [29]. Silhouettes are from Phylopic with credit attributed to Chris Huh and used under the Creative Commons Licence [30]