WBasilosaurus
WBathyopsis
WBatodonoides
WBernard's wolf
WBadlands bighorn
WCascade mountain wolf
WChoneziphius
WEastern elk
WEpihippus
WFlorida black wolf
WGoedertius
WHaplohippus
WHyaenodontidae
WHyopsodus
WKalobatippus
WKenai Peninsula wolf
WLycophocyon
WMachaeroides
WMeniscoessus
WMerriamoceros
WMerycodus
WMexican grizzly bear
WMimoperadectes
WMogollon mountain wolf
WNewfoundland wolf
WOrohippus
WOrycterocetus
WOryzomys antillarum
WOxyaena
WPatriofelis
WRhizosmilodon
WSea mink
WKit fox
WStockoceros
WTetrameryx
WVulpavus
WWoolly mammoth