Cetancodontamorpha is a total clade of artiodactyls defined, according to Spaulding et al., as Whippomorpha "plus all extinct taxa more closely related to extant members of Whippomorpha than to any other living species".
Whippomorpha is the crown clade containing Cetacea (whales, dolphins, etc.) and hippopotamuses.A higher-level MRP supertree of placental mammals The "entelodontid clade", which consists of Entelodontidae and close relatives such as Achaenodon and Andrewsarchus, was recovered as a sister clade to Whippomorpha
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