This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
X.-Y. Wang, 2020 - A new species of Amynodontopsis (Perissodactyla: Amynodontidae) from the Middle Eocene of Jiyuan, Henan, China - Vertebrata PalAsiatica (), - (journal article, English)
C. Bronnert, 2019 - First European ‘Isectolophidae’ (Mammalia, Perissodactyla): Chowliia europea, sp. nov., from the lower Eocene of Le Quesnoy, France - Journal of Vertebrate Paleontology (38), e1487-9 (journal article, English)
S. R. May, 2019 - The Lapara Creek Fauna: Early Clarendonian of south Texas, USA - Palaeontologia Electronica (), 1-129 (journal article, English)
R. A. Short, 2019 - A new species of Teleoceras (Mammalia, Rhinocerotidae) from the Late Hemphillian of Tennessee - Bulletin of the Florida Museum of Natural History (56), 183-260 (journal article, English)
B. Bai, 2018 - The divergence and dispersal of early perissodactyls as evidenced by early Eocene equids from Asia - Communications Biology (1), 1-10 (journal article, English)
J. Tissier, 2018 - New data on Amynodontidae (Mammalia, Perissodactyla) from Eastern Europe: Phylogenetic and palaeobiogeographic implications around the Eocene-Oligocene transition - PLoS ONE (13), e0193-35 (journal article, English)
E. Tsoukala, 2018 - Rhinocerotidae from the Late Miocene and Late Pliocene of Macedonia, Greece. A revision of the Neogene - Quaternary Rhinocerotidae of Greece - Revue de Paléobiologie, Genève (37), 609-630 (journal article, English)
H.-B. Wang, 2018 - A New Species of Forstercooperia (Perissodactyla: Paraceratheriidae) from Northern China with a Systematic Revision of Forstercooperiines - American Museum Novitates (3897), 1-41 (journal article, English)
B. Bai, 2018 - The late Eocene hyracodontid perissodactyl Ardynia from Saint Jacques,Inner Mongolia, China and its implications for the potentialEocene–Oligocene boundary - Palaeoworld (27), 247-257 (journal article, English)
Y.-X. Li, 2017 - New fossils of paraceratheres (Perissodactyla, Mammalia) from the Early Oligocene of the Lanzhou Basin, Gansu Province, China - Vertebrata PalAsiatica (56), 367-381 (journal article, English)
A. Averianov, 2017 - A new amynodontid from the Eocene of South China and phylogeny of Amynodontidae (Perissodactyla: Rhinocerotoidea) - Journal of Systematic Palaeontology (15), 927-945 (journal article, English)
H. Wang, 2016 - Earliest known unequivocal rhinocerotoid sheds new light on the origin of Giant Rhinos and phylogeny of early rhinocerotoids - Scientific Reports (6), 39607-9 (journal article, English)
B. Ménouret, 2015 - Aubenas-les-Alpes, a forgotten Oligocene mammalian site in Provence(S-E France). Part I – Carnivora, Perissodactyla and Microflora - Annales de Paléontologie (101), 241-250 (journal article, English)
L. Pandolfi, 2015 - New insights into the Oligocene Rhinocerotoidea (Mammalia, Perissodactyla) from Northwestern Italy - Annales de Paléontologie (101), 67-73 (journal article, English)
C. Robinet, 2015 - A new genus of Lophiodontidae (Perissodactyla, Mammalia) from the early Eocene of La Borie (Southern France) and the origin of the genus Lophiodon Cuvier, 1822 - Geobios (48), 25-38 (journal article, English)
T. Smith, 2015 - First early Eocene tapiroid from India and its implication for the paleobiogeographic origin of perissodactyls - Palaeovertebrata (39), 1-9 (journal article, English)
L. Pandolfi, 2015 - Persiatherium rodleri, gen. et sp. nov. (Mammalia, Rhinocerotidae) from the upper Miocene of Maragheh (northwestern Iran) - Journal of Vertebrate Paleontology (), - (journal article, English)
V. V. Kapur, 2015 - Oldest South Asian tapiromorph (Perissodactyla, Mammalia) from the Cambay Shale Formation, western India, with comments on its phylogenetic position and biogeographic implications - The Palaeobotanist (64), 95-103 (journal article, English)
J. A. Remy, 2015 - Les Périssodactyles (Mammalia) du gisement Bartonien supérieur de Robiac (Éocène moyen du Gard, Sud de la France) - Palaeovertebrata (39), e1:1-98 (journal article, French)
B. Bai, 2014 - New Early Eocene Basal tapiromorph from Southern China and its Phylogenetic Implications - PLoS ONE (9), e1108-9 (journal article, English)
A. Athanassiou, 2014 - A new hornless rhinoceros of the genus Acerorhinus (Perissodactyla: Rhinocerotidae) from the Upper Miocene of Kerassiá (Euboea, Greece), with a revision of related forms - Palaeontographica Abteilung A (303), 23-59 (journal article, English)
D. Becker, 2013 - A new genus of Rhinocerotidae (Mammalia, Perissodactyla) from the Oligocene of Europe - Journal of Systematic Palaeontology (11), 947-972 (journal article, English)
J. L. Franzen, 2013 - The tapirs (Mammalia, Perissodactyla, Tapiridae) from the late Miocene (early Turolian) of Dorn-Dürkheim 1 (Germany, Rheinhessen) - Palaeobio Palaeoenv (93), 171-189 (journal article, English)
M. Böhme, 2013 - Na Duong (northern Vietnam) – an exceptional window into Eocene ecosystems from Southeast Asia - Zitteliana A (53), 120-167 (journal article, English)
E. P. Gustafson, 2012 - New records of rhinoceroses from the Ringold Formation of central Washington and the Hemphillian-Blancan boundary - Journal of Vertebrate Paleontology (32), 727-731 (journal article, English)
B. Bai, 2012 - Proeggysodon gen. nov., a primitive Eocene eggysodontine (Mammalia, Perissodactyla) from Erden Obo, Siziwangqi, Nei Mongol, China - Vertebrata PalAsiatica (50), 204-218 (journal article, English)
G. D. Koufos, 2012 - New material of Chalicotheriidae (Perissodactyla, Mammalia) from the Late Miocene of Axios Valley, Macedonia (Greece) with the description of a new species - Annales de Paléontologie (98), 203-224 (journal article, English)
P. Missiaen, 2012 - New early Eocene tapiromorph perissodactyls from the Ghazij Formation of Pakistan, with implications for mammalian biochronology in Asia - Acta Palaeontologica Polonica (57), 21-34 (journal article, English)
K. Miyata, 2011 - Eocene mammals from the Akasaki and Nakakoshiki formations, western Kyushu, Japan: Preliminary work and correlation with Asian Land Mammal Ages - Vertebrata PalAsiatica (49), 53-68 (journal article, English)
B. U. Bayshashov, 2011 - Records of Tapiroidea Gray, 1825 (Mammalia, Perissodactyla) from Kazakhstan – An overview - Acta Palaeontologica Romaniae (74), 1-7 (journal article, English)
T. Deng, 2011 - Out of Tibet: Pliocene woolly rhino suggests high-plateau origin of Ice Age megaherbivores - Science (333), 1285-1288 (journal article, English)
L. Scherler, 2011 - Tapiridae (Perissodactyla, Mammalia) of the Swiss Molasse Basin during the Oligocene–Miocene transition - Journal of Vertebrate Paleontology (31), 479-496 (journal article, English)
Y.-Q. Wang, 2011 - Early Eocene perissodactyls (Mammalia) from the Upper Nomogen Formation of the Erlian Basin, Nei Mongol, China - Vertebrata PalAsiatica (49), 123-140 (journal article, English)
P.-O. Antoine, 2011 - A new late Early Oligocene vertebrate fauna from Moissac, South-West France - Comptes Rendus Palevol (10), 239-250 (journal article, English)
L. T. Holbrook, 2011 - A new genus of perissodactyl (Mammalia) from the Bridgerian of Wyoming, with comments on basal perissodactyl phylogeny - Journal of Vertebrate Paleontology (31), 895-901 (journal article, English)
H.-P. Labarrère, 2011 - Le Lophiodon (Mammifère périssodactyle) du Lutétien d’Eygalayes (Drôme, France) - Annales de Paléontologie (97), 139-156 (journal article, French)
E. C. Holanda, 2011 - New Tapirus species (Mammalia: Perissodactyla: Tapiridae) from the upper Pleistocene of Amazonia, Brazil - Journal of Mammalogy (92), 111-120 (journal article, English)
R. C. Hulbert, 2010 - A new early Pleistocene tapir (Mammalia: Perissodactyla) from Florida, with a review of Blancan tapirs from around the state - Bulletin of the Florida Museum of Natural History (49), 67-126 (journal article, English)
X.-S. Huang, 2010 - Primitive rhinocerotid fossil from the Middle Eocene of Yuanqu basin, Shanxi - Vertebrata PalAsiatica (48), 76-78 (journal article, English)
C. P. Groves, 2010 - The sixth rhino: a taxonomic re-assessment of the critically endangered northern white rhinoceros - PLoS One (5), e9703- (journal article, English)
B. Bai, 2010 - New Craniodental Materials of Litolophus gobiensis (Perissodactyla, ‘‘Eomoropidae’’) from Inner Mongolia, China, and Phylogenetic Analyses of Eocene Chalicotheres - American Museum Novitates (3688), 1-27 (journal article, English)
B. Ménouret, 2009 - Diaceratherium massiliae nov. sp. des argiles oligocènes de Saint-André et Saint-Henri à Marseille et de Les Milles près d’Aix-en-Provence (SE de la France), premier grand Rhinocerotidae brachypode européen - Geobios (42), 293-327 (journal article, French)
B.-Y. Wang, 2009 - Large mammals found from Houldjin Formation near Erenhot, Nei Mongol, China - Vertebrata PalAsiatica (47), 85-110 (journal article, English)
I. X. Giaourtsakis, 2009 - The Late Miocene Mammal Faunas of the Mytilinii Basin, Samos Island, Greece: New Collection. 10. Chalicotheriidae - Beitrage fur Palaeontologie (31), 189-205 (journal article, English)
D. Becker, 2009 - Earliest record of rhinocerotoids (Mammalia: Perissodactyla) from Switzerland: systematics and biostratigraphy - Swiss Journal of Geosciences (102), 489-504 (journal article, English)
D. R. Prothero, 2008 - New giant rhinoceros from the Arikareean (Oligocene–Miocene) of Montana, South Dakota and Wyoming - New Mexico Museum of Natural History and Science Bulletin (44), 323-330 (journal article, English)
S. D. Webb, 2008 - Terrestrial mammals of the Palmetto Fauna (early Pliocene, latest Hemphillian) from the Central Florida Phosphate District - Geology and Vertebrate Paleontology of Western and Southern North America: Contributions in Honor of David P. Whistler (), 293-312 (book chapter, English)
B. S. Ferrero, 2007 - A new upper Pleistocene tapir from Argentina: remarks on the phylogenetics and diversification of neotropical Tapiridae - Journal of Vertebrate Paleontology (27), 504-511 (journal article, English)
K. Heissig, 2007 - 8. Rhinocerotidae (Perissodactyla, Mammalia) - Annalen des Naturhistorischen Museums in Wien (108A), 233-269 (journal article, German)
Z. Qiu, 2007 - Paracerathere Fossils of China - Palaeontologia Sinica, New Series C (193), 1-396 (journal article, English)
D. Geraads, 2007 - A skull of Ancylotherium (Chalicotheriidae, Mammalia) from the late Miocene of Thermopigi (Serres, N. Greece) and the relationships of the genus - Journal of Vertebrate Paleontology (27), 461-466 (journal article, English)
Y. Chaid-Saoudi, 2006 - The fauna and associated artefacts from the Lower Pleistocene site of Mansourah (Constantine, Algeria) - Comptes Rendus Palevol (5), 963-971 (journal article, English)
S. Ducrocq, 2006 - A new ceratomorph (Perissodactyla, Mammalia) from the late Eocene of southeast Asia - Journal of Vertebrate Paleontology (26), 1024-1027 (journal article, English)
S. G. Lucas, 2006 - A new amynodontid (Mammalia, Perissodactyla) from the Eocene Clarno Formation, Oregon, and its biochronological signifi cance - PaleoBios (26), 7-20 (journal article, English)
M. W. Colbert, 2006 - Hesperaletes (Mammalia : Perissodactyla), a new tapiroid from the middle Eocene of southern California - Journal of Vertebrate Paleontology (26), 697-711 (journal article, English)
Y. Tong, 2006 - Fossil Mammals from the Early Eocene Wutu Formation of Shandong Province - Palaeontologica Sinica, New Series C (192), 1-195 (journal article, English)
N. Symeonidis, 2006 - Aivaliki, a New Locality with Fossil Rhinoceroses near Alistrati (Serres, Greece) - Beiträge zur Paläontologie (30), 437-451 (journal article, English)
D. R. Prothero, 2005 - The Evolution of North American Rhinoceroses - (), 1-218 (book, English)
J.-A. Remy, 2005 - A new chalicothere from the Pondaung Formation (late Middle Eocene of Myanmar) - Comptes Rendus Palevol (4), 341-349 (journal article, English)
P.-O. Antoine, 2005 - Rhinocerotidae from the late Miocene of Akkasdagi, Turkey - Geodiversitas (27), 601-632 (journal article, English)
T. Deng, 2005 - New cranial material of Shansirhinus (Rhinocerotidae, Perissodactyla) from the Lower Pliocene of the Linxia Basin in Gansu, China - Geobios (38), 301-313 (journal article, English)
A. O. Averianov, 2005 - Ceratomorphs (Mammalia, Perissodactyla) from the early Eocene Andarak 2 locality in Kyrgyzstan - Geodiversitas (27), 221-237 (journal article, English)
F. Lacombat, 2005 - Les rhinocéros fossiles des sites préhistoriques de l’Europe méditerranéenne et du Massif Central: paléontologie et implications biochronologiques - BAR International Series (1419), 1-175 (serial monograph, French)
R. C. Hulbert, 2005 - Late Miocene Tapirus (Mammalia, Perissodactyla) from Florida, with description of a new species, Tapirus webbi - Bulletin of the Florida Museum of Natural History (45), 465-494 (journal article, English)
J. J. Eberle, 2005 - A new 'tapir' from Ellesmere Island, Arctic Canada - Implications for northern high latitude palaeobiogeography and tapir palaeobiology - Palaeogeography, Palaeoclimatology, Palaeoecology (227), 311-322 (journal article, English)
T. Tsubamoto, 2005 - Middle Eocene ungulate mammals from Myanmar: A review with description of new specimens - Acta Palaeontologica Polonica (50), 117-138 (journal article, English)
M. W. Colbert, 2005 - The facial skeleton of the early Oligocene Colodon (Perissodactyla, Tapiroidea) - Palaeontologia Electronica (8), 1-27 (journal article, English)
S. G. Lucas, 2004 - Early Eocene (Bumbanian) perissodactyls from Mongolia and their biochronologic significance - New Mexico Museum of Natural History and Science Bulletin (26), 215-220 (journal article, English)
J. L. Franzen, 2004 - First fossil primates from Eckfeld Maar, Middle Eocene (Eifel, Germany) - Eclogae Geologicae Helvetiae (97), 213-220 (journal article, English)
Z.-X. Qiu, 2004 - Indricotheres (Perissodactyla, Mammalia) from Oligocene in Linxia Basin, Gansu, China - Vertebrata PalAsiatica (42), 177-192 (journal article, Chinese)
J. J. Hooker, 2004 - The origin of chalicotheres (Perissodactyla, Mammalia) - Palaeontology (47), 1363-1387 (journal article, English)
L. T. Holbrook, 2004 - Skulls of the Eocene perissodactyls (Mammalia) "Homogalax" and "Isectolophus" - Journal of Vertebrate Paleontology (24), 951-956 (journal article, English)
S. G. Lucas, 2004 - Eocene mammals from the Liguanqiao Basin, Henan, China, and the boundary between the Bumbanian and Arshantan land-mammal "ages" - New Mexico Museum of Natural History and Science Bulletin (26), 221-226 (journal article, English)
Z.-X. Qiu, 2004 - Mammal fossils from Yagou, Linxia Basin, Gansu, and related stratigraphic problems - Vertebrata PalAsiatica (42), 276-296 (journal article, Chinese)
Q. Li, 2003 - New materials of Sianodon from Shaanxi, China - Vertebrata PalAsiatica (41), 203-210 (journal article, English)
S. G. Lucas, 2003 - Isectolophus (Mammalia, Perissodactyla) from the Eocene of the Zaysan Basin, Kazakstan and its biochronological significance - Journal of Vertebrate Paleontology (23), 238-243 (journal article, English)
J.-P. Zonneveld, 2003 - A new species of cf. Dilophodon (Mammalia; Perissodactyla) from the early Bridgerian of southwestern Wyoming - Journal of Vertebrate Paleontology (23), 652-658 (journal article, English)
C. Guérin, 2003 - Ougandatherium napakense nov. gen. nov. sp., le plus ancien Rhinocerotidae Iranotheriinae d’Afrique - Annales de Paléontologie (89), 1-35 (journal article, French)
J. Ye, 2003 - Discovery of Paraceratherium in the northern Junggar Basin of Xinjiang - Vertebrata PalAsiatica (41), 220-229 (journal article, English)
T. Deng, 2003 - New material of Hispanotherium matritense (Rhinocerotidae, Perissodactyla) from Laogou of Hezheng County (Gansu, China), with special reference to the Chinese Middle Miocene elasmotheres - Geobios (36), 141-150 (journal article, English)
J. Alroy, 2002 - Synonymies and reidentifications of North American fossil mammals - (), - (unpublished, English)
D. J. Froehlich, 2002 - Quo vadis Eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla) - Zoological Journal of the Linnean Society (134), 141-256 (journal article, English)
X.-S. Huang, 2002 - Notes on Hyrachyus (Mammalia, Perissodactyla, Tapiroidea) from the Middle Eocene of Yuanqu Basin , Shanxi Province - Vertebrata PalAsiatica (40), 211-218 (journal article, English)
H. Tong, 2002 - On fossil remains of Early Pleistocene tapir (Perissodactyla, Mammalia) from Fanchang, Anhui - Chinese Science Bulletin (47), 586-590 (journal article, English)
J. G. M. Thewissen, 2001 - Eocene mammal faunas from northern Indo-Pakistan - Journal of Vertebrate Paleontology (21), 347-366 (journal article, English)
H. H. Covert, 2001 - Fossil mammals from the late Miocene of Vietnam - Journal of Vertebrate Paleontology (21), 633-636 (journal article, English)
V. J. Sach, 2001 - Stratigraphy and mammal faunas of the Brackwassermolasse in the surroundings of Ulm (Southwest Germany) - Stuttgarter Beiträge zur Naturkunde Serie B (310), 1-95 (journal article, German)
T. Kaya, 2001 - Late Miocene rhinocerotids (Mammalia) from Yulafli (Corlu-Thrace/Turkey) - Geobios (34), 457-467 (journal article, English)
M. C. Maas, 2001 - A new isectolophid tapiromorph (Perissodactyla, Mammalia) from the early Eocene of Pakistan - Journal of Paleontology (75), 407-417 (journal article, English)
M. C. Coombs, 2001 - Stratigraphy, chronology, biogeography, and taxonomy of early Miocene small chalicotheres of North America - Journal of Vertebrate Paleontology (21), 607-620 (journal article, English)
S. G. Lucas, 2001 - The lophialetid ceratomorph Eoletes (Mammalia) from the Eocene of the Zaysan Basin, Kazakstan - Proceedings of the Biological Society of Washington (114), 988-992 (journal article, English)
S. G. Lucas, 2001 - Sharamynodon (Mammalia: Perissodactyla) from the Eocene of the Ily Basin, Kazakstan and the antiquity of Asian amynodonts - Proceedings of the Biological Society of Washington (114), 517-525 (journal article, English)
P.-O. Antoine, 2000 - A new rhinoceros from the lower Miocene of the Bugti Hills, Baluchistan, Pakistan: the earliest elasmotheriine - Palaeontology (43), 795-816 (journal article, English)
T. Mors, 2000 - Die erst Wirbeltierfauna aus der miozanen Braunkohle der Niederrheinischen Bucht (Ville-Schichten, Tagebau Hambach) [The first vertebrate fauna from the Miocene Ville Series of the Lower Rhine Embayment (Hambach open cast mine, western Germany)] - Paläontologische Zeitschrift (74), 145-170 (journal article, German)
T. Tsubamoto, 2000 - Upper premolar dentitions of Deperetella birmanica (Mammalia: Perissodactyla: Deperetellidae) from the Eocene Pondaung Formation, Myanmar - Paleontological Research (4), 183-189 (journal article, English)
P.-O. Antoine, 2000 - Une faune rare de rhinocérotidés (Mammalia, Perissodactyla) dan le Miocène inférieur de Pellecahus (Gers, France) - Geobios (33), 249-255 (journal article, French)
C. Estravís, 2000 - Nuevos mamíferos del Eoceno Inferior de Silveirinha (Baixo Mondego, Portugal) - Coloquios de Paleontología (51), 281-311 (journal article, Spanish)
L. B. Albright, 1999 - Ungulates of the Toledo Bend local fauna (late Arikareean, early Miocene), Texas Coastal Plain - Bulletin of the Florida Museum of Natural History, Biological Sciences (42), 1-80 (journal article, English)
D. T. Rasmussen, 1999 - The Mammals Of The Eocene Duchesne River Formation - Utah Geological Survey Miscellaneous Publication (99-1), 421-427 (journal article, English)
L. T. Holbrook, 1999 - The Pphylogeny and classification of tapiromorph perissodactyls (Mammalia) - Cladistics (15), 331-350 (journal article, English)
Z. Qiu, 1998 - Mid-Tertiary chalicothere (Perissodactyla) fossils from Lanzhou, Gansu, China - Vertebrata PalAsiatica (36), 297-318 (journal article, English)
A. Averianov, 1998 - A Report on the Eocene Andarak Mammal Fauna of Kyrgyzstan - Bulletin of Carnegie Museum of Natural History (34), 210-219 (journal article, English)
D. R. Prothero, 1998 - Hyracodontidae - Evolution of Tertiary mammals of North America (), 589-594 (book/book chapter, English)
M. C. Coombs, 1998 - Chalicotherioidea - Evolution of Tertiary Mammals of North America (1), 560-568 (book/book chapter, English)
D. R. Prothero, 1998 - Rhinocerotidae - Evolution of Tertiary mammals of North America (), 595-605 (book/book chapter, English)
L. B. Albright, 1998 - New genus of tapir (Mammalia: Tapiridae) from the Arikareean (earliest Miocene) of the Texas Coastal Plain - Journal of Vertebrate Paleontology (18), 200-217 (journal article, English)
M. W. Colbert, 1998 - Tapiroidea and other moropomorphs - Evolution of Tertiary mammals of North America (), 569-582 (book/book chapter, English)
S. G. Lucas, 1997 - Eocene Perissodactyla from the Shinzhaly River, eastern Kazakhstan - Journal of Vertebrate Paleontology (17), 235-246 (journal article, English)
L. T. Holbrook, 1997 - A New Genus of Rhinocerotoid from the Eocene of Utah and the Status of North American "Forstercooperia" - Journal of Vertebrate Paleontology (17), 384-396 (journal article, English)
G. Storch, 1997 - Zaraalestes russelli, a new tupaiodontine erinaceid (Mammalia, Lipotyphla) from the Middle Eocene of Mongolia - Geobios (30), 437-445 (journal article, English)
Z. Qiu, 1997 - A new species of Aprotodon (Perissodactyla, Rhinocerotidae) from Lanzhou Basin, Gansu, China - Vertebrata PalAsiatica (35), 250-267 (journal article, English)
D. Dashzeveg, 1997 - New ceratomorph perissodactyls (Mammalia) from the middle and late Eocene of Mongolia: Their implications for phylogeny and dating - Zoological Journal of the Linnean Society (120), 105-138 (journal article, English)
S. G. Lucas, 1996 - Biochronological significance of Amynodontidae (Mammalia, Perissodactyla) from the Paleogene of Kazakhstan - Journal of Paleontology (70), 691-696 (journal article, English)
S. G. Lucas, 1996 - Fossil mammals and the age of the Changxindian Formation, Northeastern China - Palaeo Vertebrata (25), 133-140 (journal article, English)
J. Wang, 1996 - A new lophialetid perissodactyl (Mammalia) from the Early Eocene of Wutu Basin, Shandong Province - Vertebrata PalAsiatica (34), 312-321 (journal article, English)
D. Dashzeveg, 1996 - A new hyracodontid (Perissodactyla, Rhinocerotoidea) from the Ergilin Dzo Formation (Oligocene, Quarry 1) in Dzamyn Ude, Eastern Gobi Desert, Mongolia - American Museum Novitates (3178), 1-12 (journal article, English)
S. G. Lucas, 1996 - Zaisanamynodon, a Late Eocene amynodontid (Mammalia, Perissodactyla) from Kazakhstan and China - Tertiary Research (17), 51-58 (journal article, English)
A. O. Averianov, 1996 - The oldest known amynodontid (Perissodactyla, Ceratomorpha), from the early Eocene of Kyrgyzstan - Comptes Rendus de l'Academie des Sciences, Serie II Sciences de la Terre et des Planetes (323), 1059-1065 (journal article, English)
S. G. Lucas, 1996 - The giant rhinoceros Paraceratherium from the late Oligocene at Aktau Mountain, southeastern Kazakhstan, and its biochronological significance - Neues Jahrbuch für Geologie und Paläontologie, Monatshefte (1996), 539-548 (journal article, English)
D. R. Prothero, 1996 - Hyracodontidae - The Terrestrial Eocene-Oligocene Transition in North America (), 652-663 (book/book chapter, English)
L. de Bonis, 1995 - Le Garouillas et les sites contemporains (Oligocène, MP 25) des phosphorites du Quercy (Lot, Tarn-et-Garonne, France) et leurs faunes de vertébrés. 9. Perissodactyla: Amynodontidae - Palaeontographica Abteilung A (236), 157-175 (journal article, French)
L. de Bonis, 1995 - Un crâne de chalicothère (Mammalia, Perissodactyla) du Miocène supérieur de Macédoine (Grèce): remarques sur la phylogénie des Chalicotheriinae - Palaeovertebrata (24), 135-176 (journal article, French)
L. de Bonis, 1995 - Le Garouillas et les sites contemporains (Oligocène, MP 25) des phosphorites du Quercy (Lot, Tarn-et-Garonne, France) et leurs faunes de vertébrés. 10. Perissodactyla: Allaceropinae et Rhinocerotidae - Palaeontographica Abteilung A (236), 177-190 (journal article, French)
M. Padilla, 1994 - Tapirus terrestris - Mammalian Species (481), 1-8 (journal article, English)
A. O. Averianov, 1994 - Early Eocene mimotonids of Kyrgyzstan and the problem of Mixodontia - Acta Palaeontologica Polonica (39), 393-411 (journal article, English)
V. Reshetov, 1993 - Tenisia gen. nov.: taxonomic revaluation of the asian Oligocene rhinocerotoid Eggysodon turgacum (Borissiak, 1915) (Mammalia, Perissodactlya, Hyracodontidae) - Géobios (26), 715-722 (journal article, English)
M. Fortelius, 1993 - The largest land mammal ever imagined - Zoological Journal of the Linnean Society (108), 85-101 (journal article, English)
T. Qi, 1992 - A new species of Gigantamynodon from Yunnan Province - Vertebrata PalAsiatica (30), 229-232 (journal article, Chinese)
V. Codrea, 1992 - New mammal remains from the Sarmatian deposits an Minisu de Sus (Taut, Arad County) - Studia Universitatis Babes-Bolyai, Geologica (2), 35-41 (journal article, English)
S. C. Woods, 1992 - Catalogue of the type specimens of fossil vertebrates, Denver Museum of Natural History - Proceedings of the Denver Museum of Natural History (3), 1-11 (journal article, English)
D. Dashzeveg, 1991 - Hyracodontids and rhinocerotids (Mammalia, Perissodactyla, Rhinocerotoidea) from the Paleogene of Mongolia - Palaeovertebrata (21), 1-84 (journal article, English)
B.-Y. Wang, 1991 - Discovery of early medial Oligocene mammalian fauna from Kekeamu, Alxa Left Banner, Nei Mongol - Vertebrata PalAsiatica (29), 64-71 (journal article, Chinese)
P. D. Gingerich, 1991 - Systematics and Evolution of Early Eocene Perissodactyla (Mammalia) in the Clarks Fork Basin, Wyoming - Contributions from the Museum of Paleontology, University of Michigan (28), 181-213 (journal article, English)
M. R. Voorhies, 1990 - Vertebrate biostratigraphy of the Ogallala Group in Nebraska - Geologic Framework and Regional Hydrology: Upper Cenozoic Blackwater Draw and Ogallala Formations, Great Plains (), 115-151 (book/book chapter, English)
J. Cheng, 1990 - The New Mammalian Materials from the Eocene of Liguanqiao Basin - Vertebrata PalAsiatica (28), 228-244 (journal article, English)
T. Qi, 1990 - A New Genus, Ulania, of Hyracodontidae (Perissodactyla, Mammalia) - Vertebrata PalAsiatica (28), 218-227 (journal article, English)
T. Qi, 1989 - A New Species of Juxia (Perissodactyla), Nei Mongol - Vertebrata PalAsiatica (27), 205-208 (journal article, Chinese)
C. B. Hanson, 1989 - Teletaceras Radinskyi, A New Primitive Rhinocerotid from the Late Eocene Clarno Formation, Oregon - The Evolution of Perissodactyls (), - (book/book chapter, English)
E Cerdeño, 1989 - Aceratherium alfambrense sp. n., nuevo rinocerótido del Vallesiense Superior de Teruel (España) - Revista Española de Paleontología (4), 39-51 (journal article, Spanish)
R. J. Emry, 1989 - A Tiny New Eocene Ceratomorph and Comments on "Tapiroid" Systematics - Journal of Mammalogy (70), - (journal article, English)
T. Qi, 1989 - A New Species of Dzungariotherium (Perissodactyla, Mammalia) - Vertebrata PalAsiatica (27), 301-305 (journal article, English)
D. R. Prothero, 1989 - The evolution of Oligocene horses - The Evolution of Perissodactyls (), 142-175 (book/book chapter, English)
R. Shi, 1989 - Late Eocene Mammalian Fauna of Huangzhuang, Qufu, Shandong - Vertebrata PalAsiatica (27), 87-102 (journal article, English)
R. M. Schoch, 1989 - A Review of the Tapiroids - The Evolution of Perissodactyls (), - (book/book chapter, English)
L. Ginsburg, 1989 - Hoploaceratherium, a new generic name for "Aceratherium" tetradactylum - The Evolution of Perissodactyls (), 418-421 (book chapter, English)
D. R. Prothero, 1989 - Origin and evolution of the Perissodactyla: Summary and Synthesis - The Evolution of Perissodactyls (), 530-529 (book/book chapter, English)
D. R. Prothero, 1989 - Classification of the Perissodactyla - The Evolution of Perissodactyla (), 530-537 (book chapter, English)
J. Wang, 1988 - A New Genus of Ceratomorphs (Mammalia) from Middle Eocene of China - Vertebrata PalAsiatica (26), 20-34 (journal article, English)
R. L. Carroll, 1988 - - Vertebrate Paleontology and Evolution (), 1-698 (compendium, English)
T. Qi, 1987 - The middle Eocene Arshanto fauna (Mammalia) of Inner Mongolia - Annals of Carnegie Museum (56), 1-73 (journal article, English)
C. Guérin, 1987 - Animal prints and trails. Chalicotheriidae - Laetoli. A Pliocene Site in Northern Tanzania (), 469-471 (book chapter, English)
D. R. Prothero, 1987 - Miocene rhinoceroses from the Texas Gulf Coastal Plain - Journal of Paleontology (61), 388-423 (journal article, English)
J.G.M. Thewissen, 1987 - Artiodactyla and Perissodactyla (Mammalia) from the early-middle Eocene Kuldana Formation of Kohat (Pakistan) - Contributions from the Museum of Paleontology, University of Michigan (27), 247-274 (journal article, English)
J. J. Hooker, 1986 - Mammals from the Bartonian (middle/late Eocene) of the Hampshire Basin, southern England - Bulletin of the British Museum (39), 191-478 (journal article, English)
W. P. Wall, 1986 - Rostriamynodon grangeri n. gen., n. sp. of amynodontid (Perissodactyla, Rhinocerotoidea) with comments on the phylogenetic history of Eocene Amynodontidae - Journal of Paleontology (60), 911-919 (journal article, English)
X. Xu, 1986 - Dicerorhinus kirchbergensis (Jäger, 1839) from the late Middle Pleistocene mammalian fauna of Anping, Liaoning - Vertebrata PalAsiatica (24), 229-241 (journal article, Chinese)
M. Malez, 1985 - Über das Vorkommen von Amynodonten (Rhinocerotoidea, Mammalia) im Oligo-Miozän von Bosnien (Jugoslawien) - Palaeontologia Jugoslavica (34), 1-26 (journal article, German)
L. D. Agenbroad, 1984 - A robust tapir from Northern Arizona - Journal of the Arizona-Nevada Academy of Science (19), 91-99 (journal article, English)
Y. Tong, 1984 - Fossil Tapiroids from the Upper Eocene of Xichuan, Henan - Vertebrata PalAsiatica (22), 269-280 (journal article, English)
R. M. Schoch, 1984 - The Type Specimens of Tapiravus validus and ? Tapiravus rams (Mammalia, Perissodactyla), with a Review of the Genus, and a New Report of Miotapirus {Miotapirus marslandensis Schoch and Prins, new species) from Nebraska - Postilla (195), 1-12 (journal article, English)
J. A. Wilson, 1984 - Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Ceratomorpha less Amynodontidae - Pearce-Sellards Series (39), 1-47 (journal article, English)
C. E. Ray, 1984 - Pleistocene Tapirs in the Eastern United States - Carnegie Museum of Natural History Special Publication (8), 283-315 (journal article, English)
R. M. Schoch, 1984 - Two unusual specimens of Helaletes in the Yale Peabody Museum collections, and some comments on the ancestry of the Tapiridae (Perissodactyla, Mammalia) - Postilla (193), 1-20 (journal article, English)
S. G. Lucas, 1984 - Early Paleocene vertebrates, stratigraphy and biostratigraphy, West Fork of Gallegos Canyon, San Juan Basin, New Mexico - New Mexico Geology (6), 56-60 (journal article, English)
J. Ye, 1983 - Mammalian Fauna from the Late Eocene of Ulan Shireh Area, Inner Mongolia - Vertebrata PalAsiatica (21), 109-118 (journal article, English)
R. M. Schoch, 1983 - A new species of Isectolophus (Mammalia, Tapiroidea) from the Middle Eocene of Wyoming - Postilla (188), 1-4 (journal article, English)
T. Qi, 1983 - The Discovery of Hyrachyus modestus and Rhodopagus sp. nov. Perissodactyla, Mammatia in Laiwu County, Shandong - Vertebrata PalAsiatica (21), 103-108 (journal article, English)
M. Ubilla, 1983 - Sobre la presencia de Tapires fósiles en el Uruguay (Mammalia, Perissodactyla, Tapiridae) - Revista de la Facultad de Humanidades y Ciencias. Serie Ciencias de la Tierra (1), 85-102 (journal article, Spanish)
M. Chow, 1982 - Mammals from the Middle Eocene Kuanchuang Formation of Xintai, Shandong - Vertebrata PalAsiatica (20), 302-313 (journal article, English)
W. P. Wall, 1982 - The Genus Amynodon and Its Relationship to Other Members of the Amynodontidae (Perissodactyla, Rhinocerotoidea) - Journal of Paleontology (56), 434-443 (journal article, English)
L. S. Russell, 1982 - Tertiary mammals of Saskatchewan. Part VI: The Oligocene rhinoceroses - Life Science Contribution, Royal Ontario Museum (133), 1-58 (journal article, English)
X. Huang, 1982 - Notes on Late Eocene Tapiroids from the Lunan Basin, Eastern Yurinan - Vertebrata PalAsiatica (20), 315-326 (journal article, English)
S. G. Lucas, 1981 - The systematics of Rhodopagus, a Late Eocene hyracodontid (Perissodactyla, Rhinocerotoidea) from China - Bulletin of the Geological Institutions of the University of Uppsala, NS (9), 43-50 (journal article, English)
Y. Zhang, 1981 - A New Species of Simplaletes (Lophialetidae, Mammalia) from the Lower Tertiary of Shaanxi Province - Vertebrata PalAsiatica (19), 214-217 (journal article, English)
S. G. Lucas, 1981 - The Systematics of Forstercooperia, a Middle to Late Eocene Hyracodontid (Perissodactyla: Rhinocerotoidea) from Asia and Western North America - Journal of Paleontology (55), 826-841 (journal article, English)
J. A. Wilson, 1981 - Early Tertiary Vertebrate Faunas Trans-Pecos Texas: Amynodontidae - Pearce-Sellards Series (33), 1-62 (journal article, English)
B. Kurten, 1980 - - Pleistocene mammals of North America (), 1-442 (book, English)
T. Qi, 1980 - A New Eocene Lophialetid Genus of Inner Mongolia - Vertebrata PalAsiatica (18), 215-219 (journal article, English)
W. W. Dalquest, 1980 - Late Hemphillian mammals of the Ocote local fauna, Guanajuato, Mexico - Pearce-Sellards Series (32), 1-25 (journal article, English)
D. Yatkola, 1979 - Brachypotherium from the Tertiary of North America - Occasional Papers of the Museum of Natural History, University of Kansas (77), 1-11 (journal article, English)
M. C. Coombs, 1979 - Tylocephalonyx, a new genus of North American dome-skulled chalicotheres (Mammalia, Perissodactyla) - Bulletin of the American Museum of Natural History (164), 1-64 (journal article, English)
M. Brunet, 1979 - Les grands mammifères chefs de file de l'immigration oligocène et le problème de la limite Eocene-Oligocene en Europe. - Editions de la Fondation Singer-Polignac (), 1-281 (serial monograph, French)
M. C. Coombs, 1978 - Additional Schizotherium material from China , and a review of Schizotherium dentitions (Perissodactyla, Chalicotheriidae) - American Museum Novitates (2647), 1-18 (journal article, English)
Y.-j. Tang, 1978 - [New materials of Oligocene mammalian fossils from Qujing Basin, Yunnan] - Professional Papers of Stratigraphy and Palaeontology (7), 75-79 (journal article, Chinese)
R.-j. Zhai, 1978 - [A primitive elasmothere from the Miocene of Lintung, Shensi] - Professional Papers of Stratigraphy and Palaeontology (7), 122-126 (journal article, Chinese)
M. C. Coombs, 1978 - Reevaluation of Early Miocene North American Moropus (Perissodactyla, Chalicotheriidae, Schizotheriinae) - Bulletin of the Carnegie Museum of Natural History (4), 1-62 (journal article, English)
J. Wang, 1978 - Fossil Amynodentidae and lschyromyidae of Tongbo, Henan - Vertebrata PalAsiatica (16), 22-29 (journal article, Chinese)
K.-H. Fischer, 1977 - Neue Funde von Rhinocerolophiodon (n. gen.), Lophiodon und Hyrachyus (Ceratomorpha, Perissodactyla, Mammalia) aus dem Eozän des Geiseltals bei Halle (DDR); Teil 1: Rhinocerolophiodon. (New fossils of Rhinocerolophiodon (n. gen.), Lophiodon and Hyrachyus f - Zeitschrift der geologischen Wissenschaften, Berlin (5), 909-919 (journal article, German)
L. G. Tanner, 1977 - A New Species of Diceratherium From The Lower Pliocene (Valentinian) of Boyd County, Nebraska - Transactions of the Nebraska Academy of Sciences and A liated Societies (4), 121-138 (abstract, English)
M. T. Antunes, 1977 - Contributions à la paléontologie du Miocène moyen continental du Bassin du Tage, III; Mammifères - Póvoa de Santarém, Pero Filho et Chões (Secorio), Conclusions générales. [Paleontology of the continental middle Miocene of the Tagus Basin, III; Mammals - - Ciencias de Terra (), 143-165 (journal article, French)
K.-H. Fischer, 1977 - Neue Funde von Rhinocerolophiodon (n. gen.), Lophiodon und Hyrachyus (Ceratomorpha, Perissodactyla, Mammalia) aus dem Eozän des Geiseltals bei Halle (DDR); Teil 2: Lophiodon. (New fossils of Rhinocerolophiodon (n. gen.), Lophiodon and Hyrachyus from the E - Zeitschrift der geologischen Wissenschaften (5), 1129-1152 (journal article, German)
J. A. Schiebout, 1977 - Schizotheroides (Mammalia: Perissodactyla) from the Oligocene of Trans-Pecos Texas - Journal of Paleontology (51), 455-458 (journal article, English)
D. E. Savage, 1977 - Critique of certain Eocene primate taxa - Géobios (1), 159-164 (journal article, English)
J. Wang, 1976 - A New Genus of Forstercooperiinae from the Late Eocene of Tongbo, Henan - Vertebrata PalAsiatica (14), 104-111 (journal article, Chinese)
G. Chen, 1976 - Miocene mammals from Jiulongkou, Ci Xian County, Hebei Province - Vertebrata PalAsiatica (14), 6-15 (journal article, Chinese)
L. G. Tanner, 1976 - New Rhinocerotoids from the Oligocene of Nebraska - ATHLON: Essays on Palaeontology in Honour of Loris Shano Russell (), 210-219 (book/book chapter, English)
H. Loose, 1975 - Pleistocene Rhinocerotidae of W. Europe with reference to the recent two-horned species of Africa and S. E. Asia - Scripta Geologica (33), 1-59 (journal article, English)
C. B. Schultz, 1975 - Middle and late Cenozoic tapirs from Nebraska - Bulletin of the University of Nebraska State Museum (10), 1-21 (journal article, )
M. C. Coombs, 1975 - Sexual Dimorphism in Chalicotheres (Mammalia, Perissodactyla) - Systematic Zoology (24), 55-62 (journal article, English)
T. Qi, 1975 - An Early Oligocene mammalian fauna of Ningxia - Vertebrata PalAsiatica (13), 217-224 (journal article, Chinese)
L. G. Tanner, 1975 - Stratigraphic occurrences of Teleoceras with a new Kimballian species from Nebraska - Bulletin of the University of Nebraska State Museum (10), 23-33 (journal article, English)
T. Kamei, 1974 - Mammalian fossils from the Mizunami Group - Bulletin of the Mizunami Fossil Museum (1), 263-291 (journal article, Japanese)
M. D. Biryukov, 1974 - Novyy vid roda Teleolophus iz Severnoy Dzhungarii; (A new species of the genus Teleolophus from northern Dzhungaria" - Teriologiya, Vladivostok: Akademiya Nauk SSSR, Dal'nevostochnyy Nauchnyy Tsentr (2), 78-82 (journal article, Russian)
A. Sahni, 1973 - Additional Eocene mammals from the Subathu Formation of Jammu and Kashmir - Journal of the Palaeontological Society of India (17), 31-49 (journal article, English)
C.-S. Chiu, 1973 - A New Genus of Giant Rhinoceros from Oligocene of Dzungaria, Sinkiang - Vertebrata PalAsiatica (11), 182-191 (journal article, Chinese)
L. G. Tanner, 1972 - A new species of Menoceras from the Marsland Formation of Nebraska - Bulletin of the Nebraska State Museum (9), 205-213 (journal article, English)
A. Ranga Rao, 1972 - New mammalian genera and species from the Kalakot zone of Himalayan foot hills, Jammu & Kashmir State, India - Special Paper - India, Oil and Natural Gas Commission, Directorate of Geology (1), 1-19 (journal article, English)
D. A. Hooijer, 1971 - A new rhinoceros from the late Miocene of Loperot, Turkana District, Kenya - Bulletin of the Museum of Comparative Zoology (142), 339-392 (journal article, English)
A. Sahni, 1971 - Three new Eocene mammals from Rajauri District, Jammu and Kashmir - Journal of the Palaeontological Society of India (16), 41-53 (journal article, English)
E. Khan, 1971 - Punjabitherium gen. nov., an extinct rhinocerotid of the Siwaliks, Punjab, India - Proceedings of the Indian National Science Academy Part A Physical Science (37), 105-109 (journal article, English)
M. S. Stevens, 1969 - New Early Miocene Formation and Vertebrate Local Fauna, Big Bend National Park, Brewster County, Texas - Pearce-Sellards Series (15), 1-15 (journal article, English)
L. G. Tanner, 1969 - A new rhinoceros from the Nebraska Miocene - Bulletin of the Nebraska State Museum (8), 395-412 (journal article, English)
M. F. Skinner, 1968 - A Pliocene chalicothere from Nebraska, and the distribution of chalicotheres in the late Tertiary of North America - American Museum Novitates (2346), 1-24 (journal article, English)
M. Borsuk-Bialynicka, 1968 - Allacerops minor Belayeva, 1954 (Rhinocerotidae) from the Oligocene of Ulan Ganga, western Gobi Desert - Palaeontologia Polonica (19), 153-159 (journal article, English)
L. B. Radinsky, 1967 - Hyrachyus, Chasmotherium, and the early evolution of helaletid tapiroids - American Museum Novitates (2313), 1-23 (journal article, English)
P. R. Bjork, 1967 - Latest Eocene vertebrates from northwestern South Dakota - Journal of Paleontology (41), 227-236 (journal article, English)
L. G. Tanner, 1967 - A new species of rhinoceros, Aphelops kimballensis, from the latest Pliocene of Nebraska - Bulletin of the Nebraska State Museum (6), 1-16 (journal article, English)
L. B. Radinsky, 1967 - A Review of the Rhinocerotoid Family Hyracodontidae (Perissodactyla) - Bulletin of the American Museum of Natural History (136), 1-46 (journal article, English)
L. B. Radinsky, 1966 - The families of the Rhinocerotoidea (Mammalia, Perissodactyla) - Journal of Mammalogy (47), 631-639 (journal article, English)
S. M. Skinner, 1966 - A note on Toxotherium (Mammalia, Rhinocerotoidea) from Natrona County, Wyoming - American Museum Novitates (2261), 1-12 (journal article, English)
L. Gabunia, 1966 - Sur les Mammifères oligocènes du Caucase - Bulletin de la Société Géologique de France (7), 857-869 (journal article, French)
L. B. Radinsky, 1966 - A New Genus of Early Eocene Tapiroid (Mammalia, Perissodactyla) - Journal of Paleontology (40), 740-742 (journal article, English)
Y.-X. Xu, 1965 - A New Genus of Amynodont from the Eocene of Lantian, shensi - Vertebrata PalAsiatica (9), 83-86 (journal article, Chinese)
M. Chow, 1965 - Amynodonts from the Upper Eocene of Honan and Shansi - Vertebrata PalAsiatica (9), 190-203 (journal article, Chinese)
M. Chow, 1965 - Homogalax and Heptodon of Shantung - Vertebrata PalAsiatica (9), 15-21 (journal article, Chinese)
H. E. Wood, 1964 - Rhinoceroses from the Thomas Farm Miocene of Florida - Bulletin of the Museum of Comparative Zoology (130), 363-386 (journal article, English)
L. B. Radinsky, 1964 - Paleomoropus, a new early Eocene chalicothere (Mammalia, Perissodactyla), and a revision of Eocene chalicotheres - American Museum Novitates (2179), 1-28 (journal article, English)
M. Chow, 1964 - An Eocene Giant Rhinoceros - Vertebrata PalAsiatica (8), 264-267 (journal article, English)
K.-H. Fischer, 1964 - Die tapiroiden Perissodactylen aus der eozänen Braunkohle des Geiseltales (The tapiroid Perissodactyla from the eocene Lignit of the Geiseltal) - Geologie, Beihefte (45), 1-101 (serial monograph, German)
M. Chow, 1964 - Amynodon from the Eocene of Lunan, Yunnan - Vertebrata PalAsiatica (8), 355-360 (journal article, Chinese)
M. Chow, 1963 - New genus of Giant Rhinoceros from Oligocene of Inner Mongolia - Vertebrata PalAsiatica (7), 230-239 (journal article, Chinese)
H. E. Wood, 1963 - A primitive rhinoceros from the Late Eocene of Mongolia - American Museum Novitates (2146), 1-11 (journal article, English)
L. B. Radinsky, 1963 - Origin and Early Evolution of North American Tapiroidea - Peabody Museum of Natural History Bulletin (17), 1-118 (journal article, English)
C.-S. Chiu, 1962 - Giant Rhinoceros from Loping, Yunnan, and Discussion on the Taxonomic Characters of Indricotherium grangeri - Vertebrata PalAsiatica (6), 57-71 (journal article, Chinese)
Y.-X. Xu, 1962 - Early Tertiary Mammalian Fossils from Lunan, Yunnan - Vertebrata PalAsiatica (6), 313-332 (journal article, Chinese)
M. M. Chow, 1962 - A New Species of Primitive Chalicothere from the Tertiary of Lunan, Yunnan - Vertebrata PalAsiatica (6), 219-224 (journal article, Chinese)
H. E. Wood, 1961 - Planiceps Scott & Osborn, 1887 (Hyracodon): Proposed supression under the plenary powers as a nomen dubium (Mammalia) - Bulletin of Zoological Nomenclature (18), 208-208 (journal article, English)
Y.-X. Xu, 1961 - Some Oligocene Mammals from Chuching, Yunnan - Vertebrata PalAsiatica (5), 315-325 (journal article, English)
M.-C. Chow, 1961 - New Primitive True Rhinoceroses from the Eocene of Iliang, Yunnan - Vertebrata PalAsiatica (5), 291-304 (journal article, Chinese)
S. J. Olsen, 1960 - Age and faunal relationships of Tapiravus remains from Florida - Journal of Paleontology (34), 164-167 (journal article, English)
H. E. Wood, 1960 - Eight historic fossil mammal specimens in the Museum of Comparative Zoology - Bulletin of the Museum of Comparative Zoölogy at Harvard College (123), 87-110 (journal article, English)
M. Chow, 1958 - Some Oligocene Mammals from Lunan, Yunnan - Vertebrata PalAsiatica (2), 263-267 (journal article, Chinese)
R. Dehm, 1958 - Paläontologische und geologische Untersuchungen im Tertiär von Pakistan - Bayerische Akademie der Wissenschaften Mathewmatisch-Naturwissenschaftliche Klasse (91), 1-54 (journal article, German)
N. Cattoi, 1957 - Una especie extinguida de Tapirus Brisson (Tapirus rioplatensis nov. sp.) - Ameghiniana (57), 15-21 (journal article, Spanish)
J. C. Frye, 1956 - Stratigraphy of the Ogallala Formation (Neogene) of northern Kansas - State Geological Survey of Kansas Bulletin (118), 1-92 (journal article, English)
G. H. R. von Koenigwald, 1956 - Fossil mammals from the Philippines - Proceedings of the Pacific Science Congress (), 339-361 (journal article, English)
C. L. Gazin, 1956 - The Geology and Vertebrate Paleontology of Upper Eocene Strata in the Northeastern Part of the Wind River Basin, Wyoming. Part 2. the Mammalian Fauna of The Badwater Area - Smithsonian Miscellaneous Collections (131), 1-44 (journal article, English)
J. Hough, 1955 - An Upper Eocene Fauna from the Sage Creek Area, Beaverhead County, Montana - Journal of Paleontology (29), 22-36 (journal article, English)
E. C. Galbreath, 1953 - A contribution to the Tertiary geology and paleontology of northeastern Colorado - University of Kansas Paleontological Contributions Vertebrata (4), 1-120 (journal article, English)
C. Rusconi, 1949 - El puelchense de Buenos Aires y su fauna (Plioceno Medio) segunda parte - Publicaciones del Instituto de Fisiographia y Geologia (36), 100-262 (journal article, Spanish)
C. Stock, 1949 - Mammalian Fauna from Titus Canyon Formation, California - Carnegie Institution of Washington Publication (584), 229-244 (journal article, English)
E. I. Belyaeva, 1948 - - Catalogue of Tertiary Fossil Sites of the Land Mammals in the U.S.S.R. (), - (book/book chapter, English)
W. B. Scott, 1945 - The Mammalia of the Duchesne River Oligocene - Transactions of the American Philosophical Society (34), 209-253 (journal article, English)
C.-C. Young, 1944 - Note on the first Eocene mammal from South China - American Museum Novitates (1268), 1-4 (journal article, English)
P. C. Henshaw, 1942 - A Tertiary mammalian fauna from the San Antonio Mountains near Tonopah, Nevada - Carnegie Institution of Washington Publication (530), 77-168 (journal article, English)
G. S. Miller, Jr., 1942 - Zoological results of the George Vanderbilt Sumatran Expedition, 1936-1939. Part V.—Mammals collected by Frederick A. Ulmer, Jr. on Sumatra and Nias - Proceedings of the Academy of Natural Sciences of Philadelphia (44), 107-165 (journal article, English)
W. B. Scott, 1941 - The mammalian fauna of the White River Oligocene. Part V. Perissodactyla - Transactions of the American Philosophical Society (28), 747-980 (journal article, English)
G. G. Simpson, 1941 - Discovery of jaguar bones and footprints in a cave in Tennessee - American Museum Novitates (1131), 1-12 (journal article, English)
E. C. Olson, 1940 - A late Pleistocene fauna from Herculaneum, Missouri - Journal of Geology (48), 32-57 (journal article, English)
H. E. Wood, 1939 - Addendum to American Museum Novitates No. 1012 - American Museum Novitates (1012), 1- (journal article, English)
C. Stock, 1939 - Eocene Amynodonts from Southern California - Proceedings of the National Academy of Sciences (25), 270-275 (journal article, English)
H. E. Wood, 1938 - Cooperia totadentata, a remarkable rhinoceros from the Eocene of Mongolia - American Museum Novitates (1012), 1-20 (journal article, English)
C. Young, 1937 - An early Tertiary vertebrate fauna from Yuanchü - Bulletin of the geological society of China (17), 413-438 (journal article, )
H. E. Wood, 1937 - A New, Lower Oligocene, Amynodont Rhinoceros - Journal of Mammalogy (18), 93-94 (journal article, English)
E. M. Schlaikjer, 1937 - A New Tapir from the Lower Miocene of Wyoming - Bulletin of the Museum of Comparative Zoology (80), 231-251 (journal article, English)
C. Stock, 1936 - Perissodactyla of the Sespe Eocene, California - Proceedings of the National Academy of Sciences (22), 260-265 (journal article, English)
H. F. Osborn, 1936 - Amynodon mongoliensis from the Upper Eocene of Mongolia - American Museum Novitates (859), 1-5 (journal article, English)
E. M. Schlaikjer, 1935 - Contributions to the Stratigraphy and Palaeontology of the Goshen Hole Area, Wyoming. III. A New Basal Oligocene Formation - Bulletin of the Museum of Comparative Zoology (76), 71-93 (journal article, English)
H. E. Wood, 1934 - Revision of the Hyrachyidae - Bulletin of the American Museum of Natural History (67), 181-295 (journal article, English)
C. Rusconi, 1934 - Tercera noticia sobre los vertebrados fosiles de las Arenas Puelchenses de Villa Ballester - Anales de la Socieded Cientifica Argentina (117), 19-37 (journal article, English)
C. Stock, 1933 - An amynodont skull from the Sespe deposits, California - Proceedings of the National Academy of Sciences (19), 762-767 (journal article, English)
C. Stock, 1933 - Perissodactyla from the Sespe of the Las Posas Hills, California - Carnegie Institution of Washington Publication (440), 14-27 (journal article, English)
O. A. Peterson, 1932 - New species from the Oligocene of the Uinta - Annals of Carnegie Museum (21), 61-78 (journal article, English)
W. D. Matthew, 1932 - A Review of the Rhinoceroses with a Description of Aphelops Material from the Pliocene of Texas - University of California Publications, Bulletin of the Department of Geological Sciences (20), 1-3 (journal article, English)
W. D. Matthew, 1931 - Critical observations on the phylogeny of the rhinoceroses - University of California Publications, Bulletin of the Department of Geological Sciences (20), 1-9 (journal article, )
H. E. Wood, 1931 - Lower Oligocene Rhinoceroses of the Genus Trigonias - Journal of Mammalogy (12), 414-428 (journal article, English)
H. Seton, 1931 - A New Heptodon From the Wind River of Wyoming - Proceedings of the New England Zoölogical Club (12), 45-48 (journal article, English)
O. Zdansky, 1930 - Die alttertiären Säugetiere Chinas nebst stratigraphischen Bemerkungen (Mammalian fauna of the Lower Tertiary from China and some stratigraphic remarks) - Palaeontologia Sinica, Series C (7), 1-87 (serial monograph, German)
G. G. Simpson, 1930 - Tertiary Land Mammals of Florida - Bulletin of the American Museum of Natural History (59), 1-64 (journal article, English)
H. J. Cook, 1930 - New Rhinoceroses from the Pliocene of Colorado and Nebraska - Proceedings of the Colorado Museum of Natural History (9), 44-51 (journal article, English)
H. E. Wood, 1929 - American Oligocene rhinoceroses - a postscript - Journal of Mammalogy (10), 63-75 (journal article, English)
W. K. Gregory, 1928 - New material for the study of evolution: a series of primitive rhinoceros skulls (Trigonias) from the Lower Oligocene of Colorado - Proceedings of the Colorado Museum of Natural History (8), 1-32 (journal article, English)
H. J. Cook, 1927 - A new rhinoceros of the genus Teleoceras from Colorado - Proceedings of the Colorado Museum of Natural History (7), - (journal article, English)
H. E. Wood, 1927 - Some early Tertiary rhinoceroses and hyracodonts - Bulletins of American Paleontology (13), 1-105 (journal article, English)
M. Boule, 1927 - La grotte de l'Observatoire à Monaco - Archives de l'Institut de Paléontologie Humaine Mémoire (1), 1-113 (serial monograph, French)
H. H. Lane, 1927 - A New Rhinoceros from Kansas - The University of Kansas Science Bulletin (17), 297-311 (journal article, English)
H. E. Wood, 1926 - Hyracodon petersoni, a new cursorial rhinoceros from the Lower Oligocene - Annals of Carnegie Museum (16), 315-318 (journal article, English)
W. D. Matthew, 1926 - Two new perissodactyls from the Arshanto Eocene of Mongolia - American Museum Novitates (208), 1-5 (journal article, English)
W. D. Matthew, 1925 - New ungulates from the Ardyn Obo Formation of Mongolia, with faunal list and remarks on correlation - American Museum Novitates (195), 1-12 (journal article, English)
W. D. Matthew, 1925 - New mammals from the Shara Murun Eocene of Mongolia - American Museum Novitates (196), 1-11 (journal article, English)
W. D. Matthew, 1924 - Third contribution to the Snake Creek Fauna - Bulletin of the American Museum of Natural History (50), 59-210 (journal article, English)
H. F. Osborn, 1924 - Cadurcotherium ardynense, Oligocene, Mongolia - American Museum Novitates (147), 1-4 (journal article, English)
H. F. Osborn, 1924 - Serridentinus and Baluchitherium, Loh Formation, Mongolia - American Museum Novitates (148), 1-5 (journal article, English)
W. D. Matthew, 1923 - The fauna of the Ardyn Obo formation - American Museum Novitates (98), 1-5 (journal article, English)
H. F. Osborn, 1923 - New subfamily, generic, and specific stages in the evolution of the Proboscidea - American Museum Novitates (99), - (journal article, English)
H. F. Osborn, 1923 - Baluchitherium grangeri, a giant hornless rhinoceros from Mongolia - American Museum Novitates (78), 1-15 (journal article, English)
H. F. Osborn, 1923 - Titanotheres and lophiodonts in Mongolia - American Museum Novitates (91), 1-5 (journal article, English)
W. J. Sinclair, 1922 - Hyracodons from the Big Badlands of South Dakota - Proceedings of the American Philosophical Society (61), 65-79 (journal article, )
E. L. Troxell, 1922 - The status of Homogalax, with two new species - American Journal of Science (4), 31-37 (journal article, English)
E. L. Troxell, 1922 - Oligocene rodents of the genus Ischyromys - American Journal of Science (3), 288-292 (journal article, English)
E. L. Troxell, 1922 - The genus Hyrachyus and its subgroups - American Journal of Science (4), 38-49 (journal article, English)
E. L. Troxell, 1922 - Helaletes redefined - American Journal of Science (3), 365-370 (journal article, English)
E. L. Troxell, 1921 - Caenopus, the ancesetral rhinoceros - American Journal of Science (200), - (journal article, English)
E. L. Troxell, 1921 - New species of Hyracodon - American Journal of Science (2), 34-40 (journal article, English)
O. P. Hay, 1921 - Descriptions of some Pleistocene vertebrates found in the United States - Proceedings of The United States National Museum (58), 83-146 (journal article, English)
E. L. Troxell, 1921 - Cænopus, the ancestral rhinoceros - American Journal of Science (2), 41-51 (journal article, English)
E. L. Troxell, 1921 - New Amynodonts in the Marsh Collection - American Journal of Science (2), 21-34 (journal article, English)
C. Frick, 1921 - Extinct vertebrate faunas of the badlands of Bautista Creek and San Timoteo Canyon, southern California - University of California Publications in Geology (12), 277-424 (journal article, )
O. A. Peterson, 1920 - The American Diceratheres - Memoirs of the Carnegie Museum (7), 399-476 (journal article, English)
O. A. Peterson, 1919 - Report Upon the Material Discovered in the Upper Eocene of the Uinta Basin by Earl Douglas in the Years 1908-1909, and by O. A. Peterson in 1912 - Annals of Carnegie Museum (12), 40-168 (journal article, English)
W. D. Matthew, 1918 - Contributions to the Snake Creek Fauna with notes upon the Pleistocene of western Nebraska, American Museum Expedition of 1916 - Bulletin of the American Museum of Natural History (38), 183-229 (journal article, English)
R. Fourtau, 1918 - - Contribution à l'étude des vertébrés miocènes de l'Égypte (), 1-109 (book, French)
C. Forster-Cooper, 1913 - Correction of generic name (Thaumastotherium to Baluchitherium) - Annals and Magazine of Natural History (12), 504- (journal article, English)
W. J. Holland, 1913 - The osteology of the Chalicotheroidea, with special reference to a mounted skeleton of Moropus elatus Marsh, now installed in the Carnegie Museum - Memoirs of the Carnegie Museum (3), 189-406 (serial monograph, English)
H. F. Osborn, 1913 - Eomoropus, an American Eocene chalicothere - Bulletin of the American Museum of Natural History (32), 261-274 (journal article, English)
O. A. Peterson, 1913 - A new species of Moropus (M. Hollandi) from the base of the middle Miocene of western Nebraska - Science (38), 673- (journal article, English)
C. Forster-Cooper, 1913 - Thaumastotherium osbosni, a new genus of perissodactyl from the Upper Oligocene deposits of the Bugti Hills of Baluchistan. Preliminary notice - Annals and Magazine of Natural History (12), 376-381 (journal article, English)
H. J. Cook, 1912 - A new species of rhinoceros (Diceratherium loomisi) from the lower Miocene of Nebraska - Nebraska Geological Survey Bulletin (7), 29-32 (journal article, English)
H. J. Cook, 1912 - A new genus and species of rhinoceros (Epiaphelops virgasectus) from the lower Miocene of Nebraska - Nebraska Geological Survey Bulletin (7), 21-22 (journal article, English)
E. Douglass, 1908 - Rhinoceroses from the Oligocene and Miocene deposits of North Dakota and Montana - Annals of Carnegie Museum (4), 256-266 (journal article, English)
H. J. Cook, 1908 - A new genus of rhinoceros from Sioux County, Nebraska - Nebraska Geological Survey Bulletin (3), 245-248 (journal article, English)
H. J. Cook, 1908 - A New Rhinoceros from the Lower Miocene of Nebraska - The American Naturalist (42), 543-545 (journal article, English)
L. M. Lambe, 1908 - The Vertebrata of the Oligocene of the Cypress Hills, Saskatchewan - Contributions to Canadian Palaeontology (3), 1-65 (serial monograph, English)
E. H. Barbour, 1906 - Notice of a New Fossil Rhinoceros from Sioux County, Nebraska (Diceratherium arikarense) - Nebraska Geological Survey (2), 1-6 (journal article, English)
O. A. Peterson, 1906 - Preliminary Description of Two New Species of the Genus Diceratherium Marsh, From the Agate Spring Fossil Quarry - Science (24), 281-283 (journal article, English)
L. M. Lambe, 1905 - A new species of Hyracodon (H. priscidens) from the Oligocene of the Cypress Hills, Assiniboia - Proceedings and Transactions of the Royal Society of Canada, series 2 (11), 37-42 (journal article, English)
H. F. Osborn, 1904 - New Miocene rhinoceroses, with revision of known species - Bulletin of the American Museum of Natural History (20), 307-326 (journal article, English)
H. F. Osborn, 1904 - New Oligocene horses - Bulletin of the American Museum of Natural History (20), 167-179 (journal article, English)
E. Douglass, 1903 - New vertebrates from the Montana Tertiary - Annals of Carnegie Museum (2), 145-199 (journal article, English)
E. Douglass, 1902 - Fossil Mammalia of the White River beds of Montana - Transactions of the American Philosophical Society (20), 237-279 (journal article, English)
O. P. Hay, 1902 - - Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey (179), 1-868 (serial monograph, English)
W. J. Sinclair, 1901 - The Discovery of a new fossil tapir in Oregon - The Journal of Geology (9), 702-707 (journal article, English)
F. A. Lucas, 1900 - A New Rhinoceros, Trigonias osborni, from the Miocene of South Dakota - (23), 221-223 (journal article, English)
O. P. Hay, 1899 - On the Names of Certain North American Fossil Vertebrates - Science (9), 593-594 (journal article, English)
J. L. Wortman, 1896 - Species Of Hyracotherium And Allied Perissodactyls From the Wahsatch and Wind River Beds of North America - Bulletin of the American Museum of Natural History (8), 6-109 (journal article, English)
H. F. Osborn, 1895 - Perissodactyls of the Lower Miocene White River beds - Bulletin of the American Museum of Natural History (7), 343-375 (journal article, English)
J. B. Hatcher, 1894 - Discovery of Diceratherium, the two-horned Rhinoceros, in the White River beds of South Dakota - The American Geologist (8), 360-361 (journal article, English)
J. B. Hatcher, 1894 - A Median Horned Rhinoceros From the Loup Fork Beds of Nebraska - The American Geologist (8), 149-150 (journal article, English)
H. F. Osborn, 1894 - Fossil mammals of the Lower Miocene White River beds. Collection of 1892 - Bulletin of the American Museum of Natural History (6), 199-228 (journal article, )
H. F. Osborn, 1893 - Artionyx, a new genus of Ancylopoda - Bulletin of the American Museum of Natural History (5), 1-18 (journal article, English)
H. F. Osborn, 1893 - Fossil mammals of the Upper Cretaceous beds - Bulletin of the American Museum of Natural History (5), 311-330 (journal article, )
J. L. Wortman, 1893 - Ancestors of the tapir from the lower Miocene of Dakota - Bulletin of the American Museum of Natural History (5), 159-180 (journal article, English)
E. D. Cope, 1891 - On two new perissodactyles from the White River Neocene of Nebraska - American Naturalist (25), 47-49 (journal article, English)
J. Leidy, 1890 - Hippotherium and Rhinoceros from Florida - Proceedings of the Academy of Natural Sciences, Philadelphia (42), 182-183 (journal article, English)
O. C. Marsh, 1890 - Notice of new Tertiary mammals - American Journal of Science (39), 523-525 (journal article, English)
E. D. Cope, 1889 - The Vertebrata of the Swift Current River, II - The American Naturalist (23), 151-155 (journal article, English)
W. B. Scott, 1887 - Preliminary account of the fossil mammals from the White River formation contained in the Museum of Comparative Zoology - Bulletin of the Museum of Comparative Zoölogy at Harvard College (13), 151-171 (journal article, English)
W. B. Scott, 1887 - Preliminary Report on the Vertebrate Fossils of the Uinta Formation, Collected by the Princeton Expedition of 1886 - Proceedings of the American Philosophical Society (24), 255-264 (journal article, English)
O. C. Marsh, 1887 - Notice of new fossil mammals - American Journal of Science (34), 323-331 (journal article, )
E. D. Cope, 1885 - The White River beds of Swift Current River, Northwest Territory - American Naturalist (19), 163- (journal article, English)
J. Leidy, 1885 - Rhinoceros and Hippotherium from Florida - Proceedings of the Academy of Natural Sciences of Philadelphia (37), 32-33 (journal article, English)
W. B. Scott, 1883 - Two new Eocene lophiodonts - Contributions from the E. M. Museum of Geology and Archeology of Princeton College (3), 46-53 (journal article, English)
W. B. Scott, 1883 - On the Skull of the Eocene Rhinoceros, Orthocynodon, and the Relation of This Genus to Other Members of the Group - Contributions from the E. M. Museum of Geology and Archaeology of Princeton College, Bulletin (3), 3-22 (journal article, English)
E. D. Cope, 1882 - Two new genera of Mammalia from the Wasatch Eocene - American Naturalist (16), 1029- (journal article, English)
W. B. Scott, 1882 - Orthocynodon, an animal related to the rhinoceros, from the Bridger Eocene - American Journal of Science (24), 223-225 (journal article, English)
E. D. Cope, 1882 - Contributions to the history of the Vertebrata of the lower Eocene of Wyoming and New Mexico, made during 1881 - Proceedings of the American Philosophical Society (20), 139-197 (journal article, English)
E. D. Cope, 1881 - The classification of the Perissodactyla - The American Naturalist (15), 340- (journal article, English)
E. D. Cope, 1881 - New genus of Perissodactyla diplarthra - American Naturalist (15), 1018-1018 (journal article, English)
E. D. Cope, 1881 - The systematic arrangement of the Order Perissodactyla - Proceedings of the American Philosophical Society (19), 377-401 (journal article, English)
E. D. Cope, 1880 - The bad lands of the Wind River and their fauna - The American Naturalist (14), 745-748 (journal article, English)
E. D. Cope, 1880 - A new genus of tapiroids - The American Naturalist (14), 382-383 (journal article, English)
E. D. Cope, 1880 - A new genus of Rhinocerotidae - The American Naturalist (14), 540- (journal article, English)
H. F. Osborn, 1878 - Palaeontological Report of the Princeton Scientific Expedition of 1877 - Contributions from the Museum of Geology and Archæology of Princeton College (1), 1-146 (journal article, English)
E. D. Cope, 1878 - Descriptions of new extinct Vertebrata from the Upper Tertiary and Dakota Formations - Bulletin of the United States Geological and Geographical Survey of the Territories (4), 379-396 (journal article, English)
O. C. Marsh, 1877 - Notice of some new vertebrate fossils - American Journal of Arts and Sciences (14), 249-256 (journal article, English)
O. C. Marsh, 1875 - Notice of new Tertiary mammals, IV - American Journal of Science (9), 239-250 (journal article, English)
E. D. Cope, 1875 - Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, June 8th and 15th, 1875 - Proceedings of the Academy of Natural Sciences of Philadelphia (), 1-8 (journal article, English)
E. D. Cope, 1875 - Report on the vertebrate paleontology of Colorado - Annual Report of the United States Geological and Geographical Survey of the Territories (1873), 427-533 (journal article, English)
E. D. Cope, 1875 - - Systematic Catalogue of Vertebrata of the Eocene of New Mexico, Collected in 1874. Geographical Explorations and Surveys West of the 100th Meridian, Engineer Department, U. S. Army (), 5-37 (book, English)
O. C. Marsh, 1873 - Notice of new Tertiary mammals - American Journal of Science (5), 407-410 (journal article, English)
E. D. Cope, 1873 - On some Eocene mammals, obtained by Hayden's Geological Survey of 1872 - Paleontological Bulletin (12), 1-6 (journal article, English)
J. Leidy, 1873 - Part I. Contributions to the extinct vertebrate fauna of the western territories - Report of the United States Geological Survey of the Territories (1), 1-358 (serial monograph, English)
J. Leidy, 1872 - Remarks on Fossils from Oregon - Proceedings of the Academy of Natural Sciences of Philadelphia (23), 247-248 (journal article, English)
O. C. Marsh, 1872 - Preliminary description of new Tertiary mammals. Part II - American Journal of Science (4), 202-224 (journal article, English)
O. C. Marsh, 1872 - Preliminary description of new Tertiary mammals. Part I - American Journal of Science (4), 122-128 (journal article, English)
J. Leidy, 1871 - Remarks on fossil vertebrates from Wyoming - Proceedings of the Academy of Natural Sciences of Philadelphia (23), 228-229 (abstract, English)
O. C. Marsh, 1871 - Notice of some new fossil mammals from the Tertiary Formation - American Journal of Science (2), 35-44 (journal article, English)
J. Leidy, 1870 - [Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, October 4th, 1870] - Proceedings of the Academy of Natural Sciences of Philadelphia (22), 109-110 (abstract, English)
O. C. Marsh, 1870 - [Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, January 4th, 1870] - Proceedings of the Academy of Natural Sciences of Philadelphia (220), 203-3 (abstract, English)
J. Leidy, 1868 - Notice of some remains of extinct pachyderms - Proceedings of the Academy of Natural Sciences of Philadelphia (20), 230-233 (journal article, English)
J. Leidy, 1865 - [Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, September 19th, 1865] - Proceedings of the Academy of Natural Sciences of Philadelphia (17), 176-177 (abstract, English)
J. Leidy, 1858 - Notice of Remains of Extinct Vertebrata, from the Valley of the Niobrara River, Collected during the Exploring Expedition of 1857, in Nebraska, under the Command of Lieut. G. K. Warren, U. S. Top. Eng., by Dr. F. V. Hayden, Geologist to the Expedition - Proceedings of the Academy of Natural Sciences of Philadelphia (10), 15-89 (journal article, English)
J. Leidy, 1856 - Notices of several genera of extinct Mammalia, previously less perfectly characterized - Proceedings of the Academy of Natural Sciences of Philadelphia (8), 91-95 (journal article, English)
J. Leidy, 1850 - [Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, December 17th, 1850] - Proceedings of the Academy of Natural Sciences of Philadelphia (5), 121-122 (journal article, English)
C.-L. Bonaparte, 1850 - - Conspectus Systematis Mastozoologiae. Editio Altera Reformata [Survey of the system of mammals. Second revised edition]. E. J. Brill, Leyden (), 1- (serial monograph, other)
J. Leidy, 1850 - [Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, December 10th, 1850] - Proceedings of the Academy of Natural Sciences of Philadelphia (5), 119-121 (abstract, English)
J. Leidy, 1848 - Tapirus americanus fossilis - Proceedings of the Academy of Natural Sciences of Philadelphia (4), 180-183 (journal article, English)
H. Falconer, 1847 - Fauna Antiqua Sivalensis. Being the fossil zoology of the Sewalik Hills in the north of India. Illustrations–Part VIII Suidae and Rhinocerotidae - (), - (compendium, English)
R. Owen, 1846 - - A History of British Fossil Mammals and Birds (), 1-560 (book, English)
J. J. Kaup, 1834 - Description d'Ossements Fossiles de Mammifères Inconnus Jusqu'à-Présent - (3), 33-64 (book, French)
J. J. Kaup, 1833 - Description d'Ossements Fossiles de Mammifères Inconnus Jusqu'à-Présent - (2), 1-31 (book, French)
J. E. Gray, 1825 - An outline of an attempt at the disposition of Mammalia into Tribes and Families, with a list of genera apparently appertaining to each Tribe - Annals of Philosophy, new series (10), 337-344 (journal article, English)
J. E. Gray, 1821 - On the natural arrangement of vertebrose animals - The London Medical Repository Monthly Journal and Review (15), 296-310 (journal article, English)
J. C. P. Erxleben, 1777 - - Systema regni animalis per classes, ordines, genera, species, varietates, cum synonymia et historia animalium. Classis 1: Mammalia. Weygandianis, Lipsiae (), 1-636 (book, English)
M. J. Brisson, 1762 - - Regnum Animale in classes IX distributum, sive synopsis methodica, Ed. 2 (), - (book, other)
C. Linnaeus, 1758 - - Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Editio Decima (1), 1-824 (book, other)