nov Valid Perry, Dutchak & Theodor Eocene (Uintan) Cypress Hills Formation Canada( Saskatchewan) A member of the family Omomyidae belonging to the subfamily Omomyinae.
nov Valid Perry, Dutchak & Theodor Eocene (Uintan) Cypress Hills Formation Canada( Saskatchewan) A member of the family Omomyidae belonging to the subfamily Anaptomorphinae.
nov Valid May & Brown Miocene (Barstovian) Lagarto Formation United States( Texas) A member of the family Castoridae belonging to the subfamily Anchitheriomyinae.
nov Valid Samuels, Calede & Hunt Miocene (Arikareean) John Day Formation United States( Oregon) A member of the family Heteromyidae belonging to the subfamily Dipodomyinae.
nov Valid Martin, Kelly & Holroyd Late Oligocene or early Miocene John Day Formation United States( Oregon) A cricetodontine-like muroid rodent.
nov Valid Bell, Meyer & Storer Oligocene Cypress Hills Formation Canada( Saskatchewan) A member of the family Sciuridae.
nov Valid Golovanov & Zazhigin Early Pleistocene Kochkovo Formation Russia A member of the family Spalacidae belonging to the subfamily Myospalacinae.
nov Valid Meyer, Storer & Gilbert Oligocene (Orellan) Cypress Hills Formation Canada( Saskatchewan) A member of the family Aplodontiidae.
nov Valid Bell, Meyer & Storer Oligocene Cypress Hills Formation Canada( Saskatchewan) A member of the family Sciuridae.
nov Valid Bell, Meyer & Storer Oligocene Cypress Hills Formation Canada( Saskatchewan) A member of the family Sciuridae.
nov Valid Miller, Tietjen & Beard Wasatchian Margaret Formation Canada( Nunavut) A plesiadapiform belonging to the family Paromomyidae.
nov Valid Tomida & Takahashi Pliocene Ueno Formation Japan A member of the family Leporidae belonging to the subfamily Leporinae.
nov Valid Godfrey & Lambert Miocene (Burdigalian) Calvert Formation United States( Maryland) A toothed whale of uncertain affinities.
nov Valid Boessenecker, Beatty & Geisler Oligocene Chandler Bridge Formation United States( South Carolina) Coronodon planifrons[194] Sp.
nov Valid Boessenecker, Beatty & Geisler Oligocene Chandler Bridge Formation United States( South Carolina) Crisocetus[195] Gen. et sp.
nov Gaetán, Paolucci & Buono Miocene Gaiman Formation Argentina A toothed whale with anatomical similarities to members of the family Squaloziphiidae.
nov Valid Godfrey & Lambert Miocene Calvert Formation United States( Virginia) A toothed whale of uncertain affinities.
nov Valid Godfrey & Lambert Miocene (Tortonian) St. Marys Formation United States( Maryland) Squalodon murdochi[192] Sp.
nov Valid Prothero, Beatty & Marriott Eocene (Chadronian) United States( Texas) A member of the family Camelidae belonging to the subfamily Floridatragulinae.
nov Valid Orak, Kostopoulos & Ataabadi Miocene Iran A member of the family Bovidae belonging to the subfamily Bovinae and the tribe Tragoportacini.
nov Valid Wang et al. Oligocene Brule Formation United States( North Dakota) A member of Ursoidea belonging to the family Subparictidae.
nov Valid Jiangzuo et al. Miocene, Pliocene, possibly earliest Pleistocene China Spain United States Pakistan?
nov Valid Zhang, Bai & Wang Eocene Baron Sog Formation China A member of Arctoidea of uncertain affinities, possibly an early offshoot of amphicyonids or hemicyonines.
nov Valid Korth, Boyd & Emry Oligocene (Whitneyan) Brule Formation United States( North Dakota) A member of the family Talpidae.
nov Valid Santos, Prothero & Welsh Oligocene (Arikareean) Sharps Formation United States( South Dakota) A rhinoceros.
nov Valid Fernández et al. Middle Eocene-early Oligocene Quebrada de Los Colorados Formation Argentina A member of Pyrotheria belonging to the family Pyrotheriidae.
nov Valid Solórzano et al. Miocene (Santacrucian) Cura-Mallín Group Chile A notoungulate belonging to the family Hegetotheriidae and the subfamily Pachyrukhinae.
nov Valid Ferro et al. Eocene (Bartonian) Quebrada de los Colorados Formation Argentina An "archaeohyracid" typotherian notoungulate.
nov Valid Eberle et al. Late Cretaceous (Campanian) Prince Creek Formation United States( Alaska) A eutherian related to Gypsonictops.
nov Churchill et al. Miocene Riversleigh World Heritage Area Australia A member of Dasyuromorphia belonging to the family Malleodectidae.