Cetruminantia

The Cetruminantia are a clade made up of the Cetancodontamorpha (or Whippomorpha) and their closest living relatives, the Ruminantia. The term derives from the in tentional combination of two roots that reflect the two main groups encompassed by this clade: "Cet-" comes from Cetacea (cetaceans), the Greek term kétos meaning "sea monster" or "whale." "Ruminantia" is derived from the Latin ruminare, meaning "to chew again" (referring to ruminants, animals that regurgitate and re-chew their food). Cetruminantia is a taxonomic neologism designed to emphasize the surprising evolutionary relationship between cetaceans and ruminants, showing that these two groups of mammals share a more recent common ancestor with each other than with other artiodactyls.

Cetruminantia's placement within Artiodactyla can be represented in the following cladogram: