REPAD: The Recently Extinct Plants and Animals Database
Contains 12,763 taxa as of February 2026.
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Equus niobrarensis Hay, 1913

Niobrara horse

 

 

Taxonomy & Nomenclature

 

 

Conservation Status

Extinct if valid

Last record: Late Pleistocene

 

Distribution

USA

 

Biology & Ecology

 

 

Hypodigm

 

 

Media

 

 

References

Harris, Arthur H. and Porter, Linda S. W. (1980). Late Pleistocene horses of Dry Cave, Eddy County, New Mexico. Journal of Mammalogy 61(1): 46-65.

Stephens, John J. (1960). Stratigraphy and Paleontology of a Late Pleistocene Basin, Harper County, Oklahoma. Geological Society of America Bulletin 71: 1675-1702.

 

<< Back to the Perissodactyla (Odd-toed Ungulates) database

Equus namadicus Falconer & Cautley, 1849

 

 

Taxonomy & Nomenclature

 

 

Conservation Status

Extinct

Last record: Late Pleistocene

 

Distribution

India

 

Biology

 

 

Hypodigm

 

 

Media

 

 

References

Cirilli, Omar, Machado, H., Arroyo-Cabrales, J., Barrón-Ortiz, C. I., Davis, E., Jass, C. N., Jukar, A. M., Landry, Z., Marín-Leyva, A. H., Pandolfi, L., Pushkina, D., Rook, L., Saarinen, J., Scott, E., Semprebon, G., Strani, F., Villavicencio, N. A., Kaya, F. and Bernor, R. L. (2022). Evolution of the Family Equidae, Subfamily Equinae, in North, Central and South America, Eurasia and Africa during the Plio-Pleistocene. Biology 11(9): 1258. https://doi.org/10.3390/biology11091258

Joshi, R. V. et al. (1978). Fresh data on the Quaternary animal fossils and Stone Age cultures from the Central Narmada Valley, India. Asian Perspectives 21(2): 164-181.

Jukar, A. M., Lyons, S. K., Wagner, P. J. and Uhen, M. D. (2020). Late Quaternary extinctions in the Indian Subcontinent. Palaeogeography, Palaeoclimatology, Palaeoecology. doi: 110137 DOI: 10.1016/j.palaeo.2020.110137 [Abstract]

Lemoine, Rhys Taylor, Buitenwerf, Robert, Faurby, Sören and Svenning, Jens-Christian. (2025). Phylogenetic Evidence Supports the Effect of Traits on Late-Quaternary Megafauna Extinction in the Context of Human Activity. Global Ecology and Biogeography 34(7): e70078. https://doi.org/10.1111/geb.70078 [Supporting Information: Data S1]

Zedda, Marco et al. (2020). A first comparison of bone histomorphometry in extant domestic horses (Equus caballus ) and a Pleistocene Indian wild horse (Equus namadicus). Integrative Zoology. https://doi.org/10.1111/1749-4877.12444 [Abstract]

 

<< Back to the Perissodactyla (Odd-toed Ungulates) database

Equus midlandensis Quinn 1957

 

 

Taxonomy & Nomenclature

Synonym of Equus mexicanus

 

Conservation Status

Invalid (synonym)

 

Distribution

 

 

Biology & Ecology

 

 

Hypodigm

 

 

Media

 

 

References

Original scientific description:

Quinn, J. H. (1957). Pleistocene Equidae of Texas. Bureau of Economic Geology, The University of Texas Report of Investigations 33: 1-47.

 

Other references:

Harris, Arthur H. and Porter, Linda S. W. (1980). Late Pleistocene Horses of Dry Cave, Eddy County, New Mexico. Journal of Mammalogy 61(1): 46-65.

http://fossilworks.org/?a=taxonInfo&taxon_no=46288

 

<< Back to the Perissodactyla (Odd-toed Ungulates) database

Equus mexicanus Hibbard, 1955

 

 

Taxonomy & Nomenclature

Synonym/s: Equus midlandensis Quinn 1957; Onager oviedoi Mooser 1959

 

Conservation Status

Extinct if valid

Last record: Late Pleistocene

 

Distribution

Mexico & New Mexico, USA

 

Biology & Ecology

 

 

Hypodigm

 

 

Media

 

 

References

Original scientific description:

Hibbard, C. W. (1955). Pleistocene vertebrates from the upper Becerra (Becerra Superior) Formation, Valley of Tequixquiac, Mexico, with notes on others Pleistocene forms: Museum of Paleontology University of Michigan, Ann Arbor 12(5): 47-96.

 

Other references:

Alberdi, María Teresa, Arroyo-Cabrales, Joaquín, Marín-Leyva, Alejandro H. and Polaco, Oscar J. (2014). Study of Cedral Horses and their place in the Mexican Quaternary. Revista Mexicana de Ciencias Geológicas 31(2): 221-237.

Azzaroli, A. (1998). The genus Equus in North America: The Pleistocene species = Le genre Equus en Amérique du Nord - Les espèces du Pléistocène. Palaeontographia Italica 85: 1-60. [Abstract]

Bravo-Cuevas, Victor Manuel and Jiménez-Hidalgo, Eduardo. (2018). Advances on the Paleobiology of Late Pleistocene mammals from central and southern Mexico, pp. 277-313. In: Huard, Gaeten and Gareau, Jeannine (eds.). The Pleistocene: Geography, Geology, and Fauna. New York: Nova Science Publishers.

Cirilli, Omar, Machado, H., Arroyo-Cabrales, J., Barrón-Ortiz, C. I., Davis, E., Jass, C. N., Jukar, A. M., Landry, Z., Marín-Leyva, A. H., Pandolfi, L., Pushkina, D., Rook, L., Saarinen, J., Scott, E., Semprebon, G., Strani, F., Villavicencio, N. A., Kaya, F. and Bernor, R. L. (2022). Evolution of the Family Equidae, Subfamily Equinae, in North, Central and South America, Eurasia and Africa during the Plio-Pleistocene. Biology 11(9): 1258. https://doi.org/10.3390/biology11091258

Gidley, J.W., 1900, A new species of Pleistocene Horse from the Staked Plains of Texas: Bulletin of the American Museum of Natural History, 13, 111-116.

Leidy, J., 1865, Bones and teeth of horses from California and Oregon: Proceedings of the Academy of Natural Sciences of Philadelphia, 17, 94.

Leidy, J., 1868, Notice of some remains of Horses: Proceedings of the Academy of Natural Sciences of Philadelphia, 20, 195.

Miller, Wade et al. (2022). Post-Pleistocene horses (Equus) from México. The Texas Journal of Science 74(1): 5. https://doi.org/10.32011/txjsci_74_1_Article5

O. Mooser and W. W. Dalquest. (1975). Pleistocene mammals from Aguascalientes, central Mexico. Journal of Mammalogy 56(4): 781-820.

Pérez-Crespo, Víctor Adrián et al. (2022). Feeding habits and mobility of Equus conversidens and E. mexicanus from La Presita Blanca, State of San Luis Potosí, México. Historical Biology 34(2): 216-225. https://doi.org/10.1080/08912963.2021.1909008

 

<< Back to the Perissodactyla (Odd-toed Ungulates) database

Equus melkiensis Bagtache, Hadjouis & Eisenmann, 1984

 

 

Taxonomy & Nomenclature

 

 

Conservation Status

Extinct if valid

Last record: Late Pleistocene

 

Distribution

Algeria & Morocco

 

Biology & Ecology

 

 

Hypodigm

 

 

Media

 

 

References

Original scientific description:

Bagtache, B., Hadjouis, D., Eisenmann, V., 1984. Présence d'un Equus caballin (E. algericus n. sp.) et d'une autre espèce nouvelle d'Equus (E. melkiensis n. sp.) dans l'Atérien des Allobroges, Algérie. C. R. Acad. Sci. 14: 609-612.

 

Other references:

Cirilli, Omar, Machado, H., Arroyo-Cabrales, J., Barrón-Ortiz, C. I., Davis, E., Jass, C. N., Jukar, A. M., Landry, Z., Marín-Leyva, A. H., Pandolfi, L., Pushkina, D., Rook, L., Saarinen, J., Scott, E., Semprebon, G., Strani, F., Villavicencio, N. A., Kaya, F. and Bernor, R. L. (2022). Evolution of the Family Equidae, Subfamily Equinae, in North, Central and South America, Eurasia and Africa during the Plio-Pleistocene. Biology 11(9): 1258. https://doi.org/10.3390/biology11091258

Eisenmann, V., 2006. Pliocene and Pleistocene equids: paleontology versus molecular biology. In: Kahlke, R.-D., Maul, L.C., Mazza, P. (Eds.), Late Neogene and Quaternary Biodiversity and Evolution: Regional Developments and Interregional Correlations. Courier Forschungsinstitut, Senckenberg, pp. 71-89.

Faith, J. Tyler. (2014). Late Pleistocene and Holocene mammal extinctions on continental Africa. Earth-Science Reviews 128: 105-121.

Marom, Nimrod et al. (2022). The Late Middle Pleistocene mammalian fauna of Oumm Qatafa Cave, Judean Desert: taxonomy, taphonomy and palaeoenvironment. Journal of Quaternary Science. DOI: 10.1002/jqs.3414

Wrinn, P.J., Rink, W.J., 2003. ESR dating of tooth enamel from Aterian levels at Mugharet el 'Aliya (Tangier, Morocco). J. Archaeol. Sci. 30, 123-133.

 

<< Back to the Perissodactyla (Odd-toed Ungulates) database

  1. Equus mauritanicus
  2. Equus lenensis (Lena horse, Chersky horse)
  3. Equus laurentius
  4. Equus lambei (Yukon horse, Yukon wild horse)

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© 2026 The Recently Extinct Plants and Animals Database.
Edited and maintained by Branden Holmes (brndnholmes@gmail.com).