... biochronology for Pliocene and early Pleistocene time, including the following events and their calibration: the last appearance of hipparionine horses ( Nannippus ) and the first appearance of the South American immigrants, the glyptodont Glyptotherium and probably the mylodontid sloth genus Glossotherium...

...FIG. 2. — Nannippus cf. tehonensis , natural size, early Clarendonian. a. M 3 ¯ , well worn, occlusal and lingual views, No. 33035. b. Upper tooth, heavily worn, occlusal and posterior views, U. S. Nat. Mus. specimen. c. M 3 ¯ , well worn, occlusal and lingual views...

...) in the Saint David Formation of the San Pedro Valley 130 km to the southwest of Dry Mountain. The horse Nannippus persisted in the 111 Ranch locality at least until the end of the Gauss Chron, in confirmation of data from the San Pedro Valley. A diverse group of equine and asinine equids is evident in the 111...

... are, likewise, unmineralized and "fresh" in appearance, unlike the genuine fossil ungulate and carnivore remains from the same quarry. The latter fossils, especially the horse Nannippus lenticularis, indicate that the Uptegrove Local Fauna is late Hemphillian in age.--Modified journal abstracts. GeoRef...

... arizonensis ), and three-toed horse ( Nannippus peninsulatus ; Morgan and Hulbert, 1995 ; Hulbert, 2001 ; Bell et al., 2004 ; Morgan, 2005 ). These Blancan mammals, therefore, call into question the late Pleistocene age for T. walleri in this fauna. Furthermore, remains of T. walleri were subsequently...

.... The associated Hemphillian fauna of the Tecolotlán basin is represented in two main localities. In the lower part of the stratigraphic sequence is the Santa María fauna, considered to be late Hemphillian (Hh3), based on the abundance of the equids Nannippus aztecus Mooser, 1968 ; Neohipparion eurystyle...

... cerasinus ; E, Calippus elachistus ; F, Cormohipparion ingenuum ; G, Cormohipparion plicatile ; H, Nannippus westoni ; I, Neohipparion trampasense ; J, Protohippus gidleyi ; K, Pseudhipparion skinneri ; L, Gomphotherium sp.; M, Aphelops malacorhinus ; N, Teleoceras proterum ; O, Tapirus simpsoni . ...

...Figure 4. GARP predicted species distribution maps for Pseudhipparion gratum in the Barstovian–Clarendonian time slice (A), Nannippus lenticularis in the Hemphillian–Blancan time slice (B), N. azetecus in the Hemphillian–Blancan time slice (C), Astrohippus ansae in the Hemphillian–Blancan...

... Miocene mammals (the ursid Indarctos Pilgrim, 1913 , rhino Teleoceras Hatcher, 1894 , and equid Nannippus Matthew, 1926 ). It should be noted that while the REE results do not completely rule out an older (e.g., middle Pleistocene) age for the Lake Rousseau Arctodus , it nevertheless suggests...

... = “ Merychippus ” insignis ; mio = Miohippus ; mp = “ Merychippus ” primus ; na = Nannippus ; ne = Neohipparion ; on = Onohippidium ; or = Orohippus ; pc = “ Parahippus “ cognatus ; pl = “ P .” leonensis ; pr = Protohippus . ...

... . Fractionation of oxygen isotopes between mammalian bone-phosphate and environmental drinking water . Geochimica et Cosmochimica Acta , 48 : 1689 – 1693 . MacFadden , B.J. 1984 . Systematics and phylogeny of Hipparion, Neohipparion, Nannippus and Cormohipparion (Mammalia, Equidae) from...

... , Nannippus , and Cormohipparion (Mammalia, Equidae) from the Miocene and Pliocene of the New World : Bulletin of the American Museum of Natural History , 179 . 1 – 195 . MacFadden , B. J. , 1992 , Fossil Horses: Systematics, Paleobiology, and Evolution of the Family Equidae , Cambridge...

...., and Nimravides sp.), a probocidean (Gomphotheriidae indet.), rhinoceroses ( Aphelops sp. and Teleoceras sp.), horses ( Calippus sp., Nannippus sp., Neohipparion sp., and Pliohippus sp.), camels ( Megatylopus sp.), llamas ( Alforjas sp. and Hemiauchenia sp.), and an antelope-like Gelocidae...

... and phylogeny of Hipparion , Neohipparion , Nannippus and Cormohipparion (Mammalia, Equidae) from the Miocene and Pliocene of the New World : Bulletin of the American Museum of Natural History , v. 179 , p. 1 – 195 . Mein , P. , 1999 , European Miocene mammal biochronology , in Rössner...