Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Linnaeus, 1758) - mammals
Order: Artiodactyla* (or Cetartiodactyla) (Owen, 1848) - even-toed hoofed animals (includes pigs, sheep goats, cattle, deer)
Family: Tayassuidae (Palmer, 1897) - peccaries
Genus: Catagonus (Ameghino, 1904)
Species: Catagonus wagneri (Rusconi, 1930**) - Chacoan peccary
Sources: Gongora et al. 2017; Integrated Taxonomic Information System (2017)
*New anatomical and DNA evidence on the relationship between Artiodactyla (even-toed ungulates) and Cetacea (whales and dolphins) recently led to a merging of the two orders into a new group, Cetartiodactyla (Montgelard, 1997; reviewed in Kulemzina, 2009). As of October 2012, experts had not agreed on whether to define Cetartiodactyla as an official taxonomic order that would replace Artiodactyla and Cetacea. Some continue to list bison in the order Artiodactyla (Franklin, 2011) or use the term Cetartiodactyla without defining it as an order (IUCN, 2008).
**Describer: C. Rusconi (1930). Las especies fósiles argentinas de pecaríes (Tayassuidae) y sus relaciones con las del Brasil y Norte América. Anales del Museo Nacional de Historia Natural de "Bernardino Rivadavia," 36:121-241.
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