Panperissodactyla Temporal range:
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Collage of living perissodactyls, clockwise from left: plains zebra (Equus quagga), Indian rhinoceros (Rhinoceros unicornis) and Brazilian tapir (Tapirus terrestris) | |
Macrauchenia patachonica (Litopterna) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Mirorder: | Euungulata |
Clade: | Panperissodactyla Welker et al, 2015[1] |
Subgroups | |
[see classification]
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Synonyms | |
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Panperissodactyla ("all perissodactyls", alternatively spelled Pan-Perissodactyla[2]) is a clade of ungulates containing living order Perissodactyla (odd-toed ungulates) and all extinct ungulates more closely related to Perissodactyla than to Artiodactyla (even-toed ungulates).[1]
Groups thought to belong to this clade include Anthracobunia (including the families Anthracobunidae and Cambaytheriidae) known from the Paleogene of the Indian subcontinent,[3][4] as well as the South American native ungulate groups Litopterna and Notoungulata, both of which went extinct approximately 12,000 years ago.[1] Other South American native ungulate groups also possibly belong to the clade, but their placement is uncertain.[5] The enigmatic aquatic Desmostylia have also been suggested to be related to perissodactyls in some studies, though others recover them as members of afrotherian clade Tethytheria.[6] The Northern Hemisphere "condylarth" group Phenacodontidae has been placed as closely related to perissodactyls in some studies, though others recover it as unrelated.[1]
Rose et al, 2019
was invoked but never defined (see the help page).