Cetacean Family Tree Click on each name or image to learn more about that species of cetacean Ambulocetus natans Basilosaurus spp. Dorudon atrox Georgiacetus vogtlensis Pakicetus spp. Rodhocetus spp. Mysticeti Aetiocetus weltoni Eomysticetus whitmorei Janjucetus hunderi Odontoceti Cotylocara macei Livyatan melvillei Messapicetus spp. Simocetus rayi Waipatia maerewhenua Zygophyseter varolai