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Whippomorpha : ウィキペディア英語版 | Whippomorpha
Whippomorpha is the clade containing the Cetacea (whales, dolphins, etc.) and their closest living relatives, the hippopotamuses, named by Waddell et al. (1999). It is defined as a crown group, including all species that are descendants of the most recent common ancestor of ''Hippopotamus amphibius'' and ''Tursiops truncatus''.〔 This would be a sub-grouping of the Cetartiodactyla (which also includes pigs and ruminants). It is not clear how recently whales and hippos share a common ancestor, though the genetic evidence is strong that the cetaceans arose from within the Artiodactyla, thus making the even-toed ungulate grouping a paraphyletic one. Whippomorpha is a mixture of English (''wh''()'' + hippo''()) and Greek (μορφή, ''morphe = form''). Attempts have been made to rename the clade Cetancodonta but Whippomorpha maintains precedent. ==References==
es:Cetancodonta
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