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Comparison and shared features of the skulls of (a,b,e) the living pygmy right whale Caperea marginata (Museum of New Zealand Te Papa Tongarewa, Wellington, New Zealand, MM002235) and (c,d,f) the extinct cetothere Herpetocetus transatlanticus (United States National Museum of Natural History, Washington DC, USA, 182962) in (a,c) dorsal, (b,d) ventral and (e,f) posterior views.
