464:
444:
132:
112:
404:. The other species have been split off into different genera. These early equids were fox-sized animals with three toes on the hind feet, and four on the front feet. They were herbivorous browsers on relatively soft plants, and already adapted for running. The complexity of their brains suggest that they already were alert and intelligent animals. Later species reduced the number of toes, and developed teeth more suited for grinding up grasses and other tough plant food.
3687:
436:
346:
454:
411:. They have evolved specialized teeth that cut and shear tough plant matter to accommodate their fibrous diet. Their seemingly inefficient digestion strategy is a result of their size at the time of its evolution, as they would have already had to be relatively large mammals to be supported on such a strategy.
418:
epoch, with many new species appearing. By this time, equids were more truly horse like, having developed the typical body shape of the modern animals. Many of these species bore the main weight of their bodies on their central third toe, with the others becoming reduced and barely touching the
2053:
Hay, Oliver P. (1915). "Contributions to the
Knowledge of the Mammals of the Pleistocene of North America". Proceedings of the United States National Museum. 48 (2086): 535–549.
1489:
1474:
1466:
1480:
1523:
1497:
1458:
1439:
3090:
1392:
1339:
1204:
1400:
1212:
2978:
2946:
2938:
1608:
1432:
4094:
3098:
1640:
1170:
794:
3148:
3082:
3050:
2970:
2962:
1648:
1598:
1590:
1424:
1416:
1408:
1384:
1331:
1178:
990:
903:
4101:
2986:
1572:
1515:
1154:
802:
4381:
3026:
1582:
4060:
3859:
3817:
2346:
species (Mammalia, Perissodactyla) belonging to a supposedly extinct subgenus in late
Pleistocene deposits of Khakassia (Southwestern Siberia)"
1162:
588:
1718:(2013) finds that the plains zebra and Grévy's zebra are more closely related. Groves and Bell (2004) place all three species in the subgenus
4433:
3723:
1624:
1531:
1350:
3810:
1549:
4515:
548:
4355:
3218:
4525:
4394:
4412:
2294:
1921:
1792:
Engels, Sandra; Schultz, Julia A. (June 2019). "Evolution of the power stroke in early
Equoidea (Perissodactyla, Mammalia)".
4399:
1900:
Cantalapiedra, Juan L.; Sanisdro, Oscar L.; Cantero, Enrique; Prado, Jose Luis; Alberdi, Mª Teresa Luis (4 August 2023).
2134:
Orlando, L.; et al. (2008). "Ancient DNA Clarifies the
Evolutionary History of American Late Pleistocene Equids".
2107:
Aouraghe, Hassan; et al. (1999). "Les équidés du Pléstocène supérior de la grotte
Zouhrah à El Harhoura, Maroc".
3716:
2002:
1776:
4334:
3701:
1743:
4438:
4347:
3196:
2426:
2136:
2383:
4487:
4420:
3709:
3211:
2824:
1296:
4407:
4277:
4254:
4282:
3185:
4448:
131:
4520:
3691:
3204:
1994:
1988:
1901:
4474:
4194:
3175:
479:
340:
310:
2023:"Quo vadis eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla)"
463:
4469:
4461:
4386:
3350:
2695:
894:
471:
4303:
4241:
3653:
2267:
2248:
Groves, C. P.; Bell, C. H. (2004). "New investigations on the taxonomy of the zebras genus
2202:
2145:
1801:
408:
8:
3543:
2815:
2780:
2744:
2419:
1304:
1261:
1245:
3446:
2850:
2838:
2271:
2206:
2149:
1805:
1197:
3501:
3116:
3074:
3066:
3042:
2954:
2771:
2535:
2365:
2225:
2188:
2169:
1969:
1882:
1861:
1845:"The Evolutionary Strategy of the Equidae and the Origins of Rumen and Cecal Digestion"
1844:
1825:
1557:
1321:
1253:
1061:
953:
944:
928:
443:
250:
126:
1938:
4456:
4290:
4232:
4117:
4046:
3779:
3510:
3156:
2582:
2369:
2322:
2258:
2230:
2161:
2039:
2022:
1998:
1961:
1917:
1874:
1866:
1829:
1817:
1772:
816:
762:
2173:
2058:
1973:
4510:
4011:
3731:
3635:
3591:
3567:
3519:
3381:
3335:
3132:
2789:
2753:
2563:
2465:
2357:
2314:
2275:
2220:
2210:
2153:
2116:
2054:
2034:
1953:
1909:
1886:
1856:
1809:
1507:
1278:
1229:
1086:
1009:
722:
253:
208:
3226:
2074:
4295:
4087:
3058:
3010:
2994:
2554:
2545:
2507:
2479:
2215:
1632:
1616:
1539:
1078:
1070:
1042:
1017:
786:
401:
317:
4425:
4246:
1913:
4342:
4329:
4259:
4053:
4004:
3997:
3870:
3773:
3644:
3437:
3268:
3228:
3140:
3105:
3034:
3002:
2927:
2803:
2762:
2637:
2619:
2572:
2498:
2412:
2318:
1449:
1377:
1367:
1313:
1288:
1237:
1136:
1112:
1094:
1034:
878:
770:
597:
487:
298:
227:
183:
119:
2157:
1813:
4504:
4217:
4154:
3886:
3838:
3662:
3558:
3311:
2912:
2879:
2628:
2610:
2436:
2404:
1870:
1821:
1358:
1128:
1120:
982:
911:
856:
612:
572:
392:
293:
62:
2279:
2120:
1957:
4111:
4039:
4025:
3988:
3970:
3907:
3879:
3534:
3474:
3428:
3124:
3018:
2920:
2722:
2326:
2234:
2165:
1965:
1878:
1668:
1221:
1147:
974:
936:
919:
861:
809:
754:
738:
715:
708:
700:
636:
604:
397:
369:
357:
309:, and several extinct families. It is more specifically grouped within the
285:
98:
1769:
The
Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals
4368:
4269:
4226:
4140:
4124:
4067:
3977:
3893:
3824:
3284:
1188:
840:
824:
692:
620:
532:
424:
386:
assigned to
Equidae were found in North America, and date from the early
111:
37:
4168:
4147:
3942:
3935:
3921:
3914:
3900:
3852:
3831:
3483:
3341:
3180:
2664:
1676:
961:
870:
848:
676:
668:
652:
644:
628:
580:
564:
504:
500:
375:
351:
306:
82:
47:
2361:
4373:
4316:
4161:
4032:
4018:
3928:
3845:
3803:
1660:
746:
730:
660:
556:
524:
143:
87:
31:
4360:
4188:
2341:
4321:
4211:
3796:
3767:
3755:
3262:
3256:
3250:
2193:
540:
435:
363:
313:
281:
193:
163:
102:
77:
72:
57:
52:
42:
2072:
390:
epoch, 54 million years ago. They were once assigned to the genus
297:, which originated in North America. Equidae belongs to the order
4482:
3953:
3626:
3582:
2889:
1899:
685:
491:(In addition to Equidae, Perissodactyla includes four species of
415:
345:
328:
269:
232:
92:
67:
4134:
4078:
3761:
3749:
3399:
3390:
3375:
3244:
2735:
2713:
2686:
2521:
2488:
2456:
1270:
1052:
1025:
1000:
886:
833:
779:
499:, as well as five living species (belonging to four genera) of
387:
383:
277:
273:
261:
173:
153:
4308:
3609:
3422:
3408:
3361:
3320:
2874:
2676:
2655:
2596:
2075:"The oldest record of Equini (Mammalia: Equidae) from Mexico"
1104:
496:
492:
453:
302:
289:
265:
257:
1706:
Although the plains and mountain zebras have been placed in
965:(this subgenus and its species are possibly synonymous with
2884:
2189:"Mitochondrial Phylogenomics of Modern and Ancient Equids"
2663:
2073:
Bravo-Cuevas, V.M.; Ferrusquía-Villafranca, I. (2010).
1908:. Fascinating Life Sciences. Springer. pp. 27–45.
3309:
2340:
Eisenmann, Vera; Vasilijiev, Sergej (September 2011).
224:
2339:
1986:
327:refers to any member of this family, including any
260:and related animals, including the extant horses,
349:Extinct equids restored to scale. Left to right:
4502:
414:The family became relatively diverse during the
2016:
2014:
1904:. In Prins, Herbert H.; Gordon, Ian J. (eds.).
2434:
2241:
3717:
3212:
2420:
1791:
427:epoch, and spread rapidly through the world.
419:ground, if at all. The sole surviving genus,
2068:
2066:
2011:
407:The equids, like other perissodactyls, are
3724:
3710:
3219:
3205:
2427:
2413:
2247:
2127:
1771:. London: Marshall Editions. p. 255.
1766:
316:, the only other family being the extinct
110:
2292:
2224:
2214:
2063:
2038:
2027:Zoological Journal of the Linnean Society
2020:
1936:
1860:
1794:Palaeobiodiversity and Palaeoenvironments
2187:Vilstrup, Julia T.; et al. (2013).
2186:
2180:
2106:
462:
452:
442:
434:
344:
2133:
2082:Revista Mexicana de Ciencias Geológicas
1939:"Fossil Horses--Evidence for Evolution"
1906:The Equids, A Suite of Splendid Species
4503:
3624:
1990:Mammal Evolution: an illustrated guide
284:into larger, single-toed animals. All
4193:
4192:
3705:
3200:
2408:
1842:
4488:D29B7591-02A6-4A8D-AB5E-A015ADEBBBB8
4449:490e09c1-eeb3-4a40-a71e-5f95c16d0870
4348:a453cd23-92f0-4ad1-95be-ab913e0305e0
1993:. New York: Facts on File. pp.
1980:
1987:Savage, RJG & Long, MR (1986).
1937:MacFadden, B. J. (March 18, 2005).
400:of that genus is now regarded as a
13:
1902:"Evolutionary Radiation of Equids"
1862:10.1111/j.1558-5646.1976.tb00957.x
14:
4537:
4516:Extant Ypresian first appearances
2021:Froehlich, D.J. (February 2002).
430:
3686:
3685:
3472:
2040:10.1046/j.1096-3642.2002.00005.x
130:
35:
3282:
2376:
2333:
2286:
2100:
2059:10.5479/si.00963801.48-2086.515
1700:
4526:Taxa named by John Edward Gray
2384:"Fossilworks: Equus fraternus"
2293:Eisenmann, Vera (March 2010).
2137:Journal of Molecular Evolution
2047:
1930:
1893:
1836:
1785:
1760:
1736:
1:
2342:"Unexpected finding of a new
1926:– via www.springer.com.
1729:
1490:Equus stenonis petraloniensis
2216:10.1371/journal.pone.0055950
334:
301:, which includes the extant
7:
2825:Hartmann's mountain zebra (
2510:Equus africanus somaliensis
2447:Extinct species are marked
2303:(Perissodactyla, Mammalia)"
1914:10.1007/978-3-031-27144-1_2
423:, had evolved by the early
278:around 50 million years ago
10:
4542:
3186:Domestication of the horse
2585:Equus hemionus hydruntinus
2501:Equus africanus atlanticus
2319:10.1016/j.crvi.2009.12.013
1032:Equus africanus atlanticus
477:
338:
4201:
4077:
3987:
3965:
3961:
3952:
3869:
3788:
3744:
3683:
3608:
3580:
3556:
3532:
3499:
3482:
3471:
3467:
3292:
3281:
3277:
3239:
3166:
2898:
2867:
2837:
2802:
2721:
2712:
2654:
2595:
2522:Onager / Asiatic wild ass
2520:
2482:Equus africanus africanus
2464:
2455:
2445:
2158:10.1007/s00239-008-9100-x
1843:Janis, Christine (1976).
1814:10.1007/s12549-018-0341-4
1475:Equus stenonis pamirensis
1467:Equus stenonis senezensis
1297:Hartmann's mountain zebra
1040:Equus africanus somalicus
1015:Equus africanus africanus
280:from a small, multi-toed
221:
216:
127:Scientific classification
125:
118:
109:
23:
2307:Comptes Rendus Biologies
1767:Palmer, D., ed. (1999).
1693:
245:(sometimes known as the
16:Family of hoofed mammals
3739:, arranged by subfamily
2747:Equus quagga burchellii
2698:Equus ferus przewalskii
2548:Equus hemionus hemippus
2538:Equus hemionus hemionus
2280:10.1078/1616-5047-00133
2121:10.3406/quate.1999.1649
1958:10.1126/science.1105458
1558:Equus (A.) occidentalis
1243:Equus quagga burchellii
1068:Equus hemionus hemippus
1059:Equus hemionus hemionus
892:Equus ferus przewalskii
3654:South American tapir (
3176:Evolution of the horse
2827:Equus zebra hartmannae
2783:Equus quagga crawshayi
2597:Kiang/Tibetan wild ass
2491:Equus africanus asinus
1481:Hippotigris pamirensis
1294:Equus zebra hartmannae
1259:Equus quagga crawshayi
1023:Equus africanus asinus
480:List of perissodactyls
475:
460:
450:
440:
379:
341:Evolution of the horse
4470:Paleobiology Database
3544:Sumatran rhinoceros (
2816:Cape mountain zebra (
2774:Equus quagga chapmani
2765:Equus quagga borensis
2631:Equus kiang holdereri
2575:Equus hemionus onager
2435:Species of the genus
1710:and Grévy's zebra in
1524:Equus sussenbornensis
1498:Equus stenonis vireti
1251:Equus quagga chapmani
1235:Equus quagga borensis
1126:Equus kiang holdereri
1092:Equus hemionus onager
466:
456:
446:
438:
348:
276:. The family evolved
4343:Fauna Europaea (new)
3351:Przewalski's horse (
3231:(Odd-toed ungulates)
2792:Equus quagga selousi
2696:Przewalski's horse (
2679:Equus ferus caballus
2640:Equus kiang polyodon
2566:Equus hemionus kulan
2536:Mongolian wild ass (
2299:, a new subgenus of
1599:Equus (H.) mexicanus
1591:Equus (H.) pacificus
1459:Equus stenonis guthi
1276:Equus quagga selousi
1134:Equus kiang polyodon
1084:Equus hemionus kulan
1055:or Asiatic wild ass
876:Equus ferus caballus
3511:Indian rhinoceros (
3234:species by suborder
3091:Equus parastylidens
2756:Equus quagga boehmi
2738:Equus quagga quagga
2583:European wild ass (
2557:Equus hemionus khur
2272:2004MamBi..69..182G
2207:2013PLoSO...855950V
2150:2008JMolE..66..533O
1952:(5716): 1728–1730.
1806:2019PdPe...99..271E
1573:Equus (A.) excelsus
1393:Equus livenzovensis
1340:Equus parastylidens
1305:Cape mountain zebra
1268:Equus quagga quagga
1227:Equus quagga boehmi
1205:Equus koobiforensis
1076:Equus hemionus khur
288:species are in the
3732:Extinct genera of
3592:Black rhinoceros (
3568:White rhinoceros (
3520:Javan rhinoceros (
3382:African wild ass (
3117:Equus semiplicatus
3108:Equus simplicidens
3075:Equus occidentalis
3067:Equus niobrarensis
3043:Equus mauritanicus
2955:Equus conversidens
2928:Giant Cape zebra (
2781:Crawshay's zebra (
2745:Burchell's zebra (
2564:Turkmenian kulan (
1401:Equus sanmeniensis
1375:Equus simplicidens
1322:Equus mauritanicus
1213:Equus oldowayensis
1062:Mongolian wild ass
954:Equus semiplicatus
945:Equus conversidens
929:Equus niobrarensis
895:Przewalski's horse
884:†Equus ferus ferus
476:
472:Przewalski's horse
461:
451:
441:
409:hindgut fermenters
380:
4498:
4497:
4457:Open Tree of Life
4195:Taxon identifiers
4186:
4185:
4182:
4181:
4178:
4177:
4047:Proboscidipparion
3738:
3699:
3698:
3679:
3678:
3675:
3674:
3618:
3604:
3603:
3493:
3463:
3462:
3459:
3458:
3353:E. f. przewalskii
3326:
3303:
3232:
3194:
3193:
3157:Equus yunnanensis
2979:Equus dalianensis
2947:Equus complicatus
2939:Equus cedralensis
2863:
2862:
2818:Equus zebra zebra
2772:Chapman's zebra (
2708:
2707:
2689:Equus ferus ferus
2650:
2649:
2613:Equus kiang kiang
2555:Indian wild ass (
2546:Syrian wild ass (
2508:Somali wild ass (
2480:Nubian wild ass (
2362:10.5252/g2011n3a5
2259:Mammalian Biology
1923:978-3-031-27143-4
1609:Equus complicatus
1433:Equus cedralensis
1302:Equus zebra zebra
1145:Equus hydruntinus
1118:Equus kiang kiang
763:Proboscidipparion
382:The oldest known
268:, and many other
240:
239:
212:
4533:
4491:
4490:
4478:
4477:
4465:
4464:
4452:
4451:
4442:
4441:
4429:
4428:
4426:NHMSYS0000376630
4416:
4415:
4403:
4402:
4390:
4389:
4377:
4376:
4364:
4363:
4351:
4350:
4338:
4337:
4325:
4324:
4312:
4311:
4299:
4298:
4286:
4285:
4273:
4272:
4263:
4262:
4250:
4249:
4237:
4236:
4235:
4222:
4221:
4220:
4190:
4189:
4095:Heteropliohippus
4012:Eurygnathohippus
3963:
3962:
3959:
3958:
3736:
3726:
3719:
3712:
3703:
3702:
3689:
3688:
3645:Mountain tapir (
3622:
3621:
3617:
3616:
3612:
3497:
3496:
3492:
3491:
3487:
3469:
3468:
3438:Mountain zebra (
3362:Domestic horse (
3325:
3324:
3316:
3307:
3306:
3302:
3301:
3297:
3279:
3278:
3230:
3221:
3214:
3207:
3198:
3197:
3133:Equus sivalensis
3106:Hagerman horse (
3099:Equus pectinatus
2804:Mountain zebra (
2763:Maneless zebra (
2719:
2718:
2661:
2660:
2638:Southern kiang (
2620:Northern kiang (
2573:Persian onager (
2499:Atlas wild ass (
2466:African wild ass
2462:
2461:
2429:
2422:
2415:
2406:
2405:
2399:
2398:
2396:
2394:
2380:
2374:
2373:
2337:
2331:
2330:
2290:
2284:
2283:
2245:
2239:
2238:
2228:
2218:
2184:
2178:
2177:
2131:
2125:
2124:
2104:
2098:
2097:
2095:
2093:
2079:
2070:
2061:
2051:
2045:
2044:
2042:
2018:
2009:
2008:
1984:
1978:
1977:
1943:
1934:
1928:
1927:
1897:
1891:
1890:
1864:
1840:
1834:
1833:
1789:
1783:
1782:
1764:
1758:
1757:
1755:
1754:
1740:
1723:
1704:
1641:Equus pectinatus
1508:Equus sivalensis
1262:Crawshay's zebra
1246:Burchell's zebra
1171:Equus melkiensis
1087:Turkmenian kulan
1010:African wild ass
923:Yukon wild horse
795:Heteropliohippus
723:Eurygnathohippus
272:known only from
226:
207:
135:
134:
114:
97:
34:
27:Temporal range:
21:
20:
4541:
4540:
4536:
4535:
4534:
4532:
4531:
4530:
4521:Mammal families
4501:
4500:
4499:
4494:
4486:
4481:
4473:
4468:
4460:
4455:
4447:
4445:
4437:
4432:
4424:
4419:
4411:
4406:
4398:
4393:
4385:
4380:
4372:
4367:
4359:
4354:
4346:
4341:
4333:
4328:
4320:
4315:
4307:
4302:
4294:
4289:
4281:
4276:
4268:
4266:
4258:
4253:
4245:
4240:
4231:
4230:
4225:
4216:
4215:
4210:
4197:
4187:
4174:
4088:Haringtonhippus
4073:
3983:
3948:
3865:
3784:
3740:
3730:
3700:
3695:
3671:
3663:Malayan tapir (
3636:Baird's tapir (
3614:
3613:
3600:
3576:
3552:
3528:
3489:
3488:
3486:
3478:
3455:
3447:Grévy's zebra (
3318:
3317:
3315:
3299:
3298:
3296:
3288:
3273:
3235:
3229:Perissodactyla
3225:
3195:
3190:
3162:
3149:Equus uralensis
3083:Equus pacificus
3059:Equus namadicus
3051:Equus mexicanus
3011:Equus giganteus
2995:Equus fraternus
2971:Equus cumminsii
2963:Equus crinidens
2900:
2894:
2859:
2851:Grévy's zebra (
2839:Grévy's zebra (
2833:
2798:
2790:Selous' zebra (
2754:Grant's zebra (
2704:
2646:
2629:Eastern kiang (
2622:Equus kiang chu
2611:Western kiang (
2598:
2591:
2523:
2516:
2470:Equus africanus
2467:
2451:
2441:
2433:
2403:
2402:
2392:
2390:
2388:fossilworks.org
2382:
2381:
2377:
2338:
2334:
2291:
2287:
2246:
2242:
2185:
2181:
2132:
2128:
2105:
2101:
2091:
2089:
2077:
2071:
2064:
2052:
2048:
2019:
2012:
2005:
1985:
1981:
1941:
1935:
1931:
1924:
1898:
1894:
1841:
1837:
1790:
1786:
1779:
1765:
1761:
1752:
1750:
1742:
1741:
1737:
1732:
1727:
1726:
1705:
1701:
1696:
1649:Equus crenidens
1633:Equus giganteus
1617:Equus fraternus
1540:Equus namadicus
1425:Equus plicidens
1417:Equus numidicus
1409:Equus teilhardi
1385:Equus cumminsii
1332:Parastylidequus
1254:Chapman's zebra
1179:Equus graziosii
1110:Equus kiang chu
1079:Indian wild ass
1071:Syrian wild ass
1043:Somali wild ass
1026:Domestic donkey
1018:Nubian wild ass
1007:Equus africanus
991:Equus insulatus
904:Equus algericus
860:(22 species, 7
787:Haringtonhippus
518:Hyracotheriinae
503:.) † indicates
482:
433:
343:
337:
318:Palaeotheriidae
206:
129:
105:
96:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
45:
40:
29:
28:
25:
17:
12:
11:
5:
4539:
4529:
4528:
4523:
4518:
4513:
4496:
4495:
4493:
4492:
4479:
4466:
4453:
4443:
4430:
4417:
4404:
4391:
4378:
4365:
4352:
4339:
4330:Fauna Europaea
4326:
4313:
4300:
4287:
4274:
4264:
4251:
4238:
4223:
4207:
4205:
4199:
4198:
4184:
4183:
4180:
4179:
4176:
4175:
4173:
4172:
4165:
4158:
4151:
4144:
4129:
4128:
4121:
4106:
4105:
4102:Parapliohippus
4098:
4091:
4083:
4081:
4075:
4074:
4072:
4071:
4064:
4057:
4054:Pseudhipparion
4050:
4043:
4036:
4029:
4022:
4015:
4008:
4005:Cormohipparion
4001:
3998:Cremohipparion
3993:
3991:
3985:
3984:
3982:
3981:
3974:
3966:
3956:
3950:
3949:
3947:
3946:
3939:
3932:
3925:
3918:
3911:
3904:
3897:
3890:
3883:
3875:
3873:
3871:Anchitheriinae
3867:
3866:
3864:
3863:
3856:
3849:
3842:
3835:
3828:
3821:
3814:
3807:
3800:
3792:
3790:
3786:
3785:
3783:
3782:
3780:Perissodactyla
3776:
3774:Laurasiatheria
3770:
3764:
3758:
3752:
3745:
3742:
3741:
3737:(Horse family)
3729:
3728:
3721:
3714:
3706:
3697:
3696:
3684:
3681:
3680:
3677:
3676:
3673:
3672:
3670:
3669:
3660:
3651:
3642:
3632:
3630:
3619:
3606:
3605:
3602:
3601:
3599:
3598:
3588:
3586:
3578:
3577:
3575:
3574:
3564:
3562:
3554:
3553:
3551:
3550:
3546:D. sumatrensis
3540:
3538:
3530:
3529:
3527:
3526:
3517:
3507:
3505:
3494:
3490:(Rhinoceroses)
3484:Rhinocerotidae
3480:
3479:
3465:
3464:
3461:
3460:
3457:
3456:
3454:
3453:
3444:
3435:
3429:Plains zebra (
3416:
3415:
3406:
3397:
3388:
3369:
3368:
3359:
3358:
3357:
3329:
3327:
3304:
3300:(Horse family)
3290:
3289:
3275:
3274:
3272:
3271:
3269:Laurasiatheria
3265:
3259:
3253:
3247:
3240:
3237:
3236:
3224:
3223:
3216:
3209:
3201:
3192:
3191:
3189:
3188:
3183:
3178:
3173:
3167:
3164:
3163:
3161:
3160:
3152:
3144:
3141:Equus stenonis
3136:
3128:
3120:
3112:
3102:
3094:
3086:
3078:
3070:
3062:
3054:
3046:
3038:
3035:Equus lenensis
3030:
3022:
3014:
3006:
3003:Equus gallicus
2998:
2990:
2987:Equus excelsus
2982:
2974:
2966:
2958:
2950:
2942:
2934:
2930:Equus capensis
2924:
2916:
2907:
2905:
2896:
2895:
2893:
2892:
2887:
2882:
2877:
2871:
2869:
2865:
2864:
2861:
2860:
2858:
2857:
2847:
2845:
2835:
2834:
2832:
2831:
2822:
2812:
2810:
2800:
2799:
2797:
2796:
2787:
2778:
2769:
2760:
2751:
2742:
2731:
2729:
2723:Plains zebra (
2716:
2710:
2709:
2706:
2705:
2703:
2702:
2693:
2683:
2673:
2671:
2658:
2652:
2651:
2648:
2647:
2645:
2644:
2635:
2626:
2617:
2607:
2605:
2593:
2592:
2590:
2589:
2579:
2570:
2561:
2552:
2542:
2532:
2530:
2526:Equus hemionus
2518:
2517:
2515:
2514:
2505:
2495:
2486:
2476:
2474:
2459:
2453:
2452:
2446:
2443:
2442:
2432:
2431:
2424:
2417:
2409:
2401:
2400:
2375:
2356:(3): 519–530.
2332:
2313:(3): 235–240.
2285:
2266:(3): 182–196.
2240:
2179:
2144:(5): 533–538.
2126:
2099:
2062:
2046:
2033:(2): 141–256.
2010:
2003:
1979:
1929:
1922:
1892:
1855:(4): 757–774.
1835:
1800:(2): 271–291.
1784:
1777:
1759:
1748:paleobiodb.org
1734:
1733:
1731:
1728:
1725:
1724:
1698:
1697:
1695:
1692:
1691:
1690:
1689:
1688:
1687:
1686:
1685:
1684:
1683:
1682:
1681:
1680:
1672:
1664:
1656:
1655:
1654:
1653:
1652:
1644:
1636:
1628:
1620:
1612:
1604:
1603:
1602:
1594:
1568:
1567:
1566:
1565:
1564:
1563:
1562:
1545:
1544:
1543:
1535:
1527:
1519:
1516:Equus stehlini
1511:
1503:
1502:
1501:
1493:
1485:
1470:
1462:
1450:Equus stenonis
1441:Equus stenonis
1436:
1428:
1420:
1412:
1404:
1396:
1388:
1380:
1378:Hagerman horse
1368:incertae sedis
1364:
1363:
1362:
1346:
1345:
1344:
1343:Mooser's horse
1327:
1326:
1325:
1317:
1314:Equus capensis
1309:
1308:
1307:
1299:
1289:Mountain zebra
1283:
1282:
1281:
1273:
1264:
1256:
1248:
1240:
1238:Maneless zebra
1232:
1216:
1208:
1200:
1184:
1183:
1182:
1174:
1166:
1158:
1155:Equus altidens
1150:
1141:
1140:
1139:
1137:Southern kiang
1131:
1123:
1115:
1113:Northern kiang
1099:
1098:
1097:
1095:Persian onager
1089:
1081:
1073:
1064:
1050:Equus hemionus
1047:
1046:
1045:
1037:
1035:Atlas wild ass
1028:
1020:
996:
995:
994:
986:
978:
957:
949:
940:
932:
924:
915:
907:
899:
898:
897:
889:
881:
879:Domestic horse
852:
844:
830:
829:
828:
820:
806:
803:Parapliohippus
798:
790:
776:
775:
774:
771:Pseudhipparion
766:
758:
750:
742:
734:
726:
712:
704:
696:
682:
681:
680:
672:
664:
656:
648:
640:
632:
624:
616:
608:
598:Anchitheriinae
594:
593:
592:
584:
576:
568:
560:
552:
544:
536:
528:
488:Perissodactyla
432:
431:Classification
429:
339:Main article:
336:
333:
299:Perissodactyla
238:
237:
236:
235:
230:
228:Anchitheriinae
219:
218:
214:
213:
201:
197:
196:
191:
187:
186:
184:Perissodactyla
181:
177:
176:
171:
167:
166:
161:
157:
156:
151:
147:
146:
141:
137:
136:
123:
122:
120:Persian onager
116:
115:
107:
106:
91:
86:
81:
76:
71:
66:
61:
56:
51:
46:
41:
36:
26:
15:
9:
6:
4:
3:
2:
4538:
4527:
4524:
4522:
4519:
4517:
4514:
4512:
4509:
4508:
4506:
4489:
4484:
4480:
4476:
4471:
4467:
4463:
4458:
4454:
4450:
4444:
4440:
4435:
4431:
4427:
4422:
4418:
4414:
4409:
4405:
4401:
4396:
4392:
4388:
4383:
4379:
4375:
4370:
4366:
4362:
4357:
4353:
4349:
4344:
4340:
4336:
4331:
4327:
4323:
4318:
4314:
4310:
4305:
4301:
4297:
4292:
4288:
4284:
4279:
4275:
4271:
4265:
4261:
4256:
4252:
4248:
4243:
4239:
4234:
4228:
4224:
4219:
4213:
4209:
4208:
4206:
4204:
4200:
4196:
4191:
4171:
4170:
4166:
4164:
4163:
4159:
4157:
4156:
4152:
4150:
4149:
4145:
4143:
4142:
4137:
4136:
4131:
4130:
4127:
4126:
4122:
4120:
4119:
4114:
4113:
4108:
4107:
4104:
4103:
4099:
4097:
4096:
4092:
4090:
4089:
4085:
4084:
4082:
4080:
4076:
4070:
4069:
4065:
4063:
4062:
4058:
4056:
4055:
4051:
4049:
4048:
4044:
4042:
4041:
4037:
4035:
4034:
4030:
4028:
4027:
4023:
4021:
4020:
4016:
4014:
4013:
4009:
4007:
4006:
4002:
4000:
3999:
3995:
3994:
3992:
3990:
3986:
3980:
3979:
3975:
3973:
3972:
3968:
3967:
3964:
3960:
3957:
3955:
3951:
3945:
3944:
3940:
3938:
3937:
3933:
3931:
3930:
3926:
3924:
3923:
3919:
3917:
3916:
3912:
3910:
3909:
3905:
3903:
3902:
3898:
3896:
3895:
3891:
3889:
3888:
3887:Archaeohippus
3884:
3882:
3881:
3877:
3876:
3874:
3872:
3868:
3862:
3861:
3857:
3855:
3854:
3850:
3848:
3847:
3843:
3841:
3840:
3839:Protorohippus
3836:
3834:
3833:
3829:
3827:
3826:
3822:
3820:
3819:
3815:
3813:
3812:
3808:
3806:
3805:
3801:
3799:
3798:
3794:
3793:
3791:
3787:
3781:
3777:
3775:
3771:
3769:
3765:
3763:
3759:
3757:
3753:
3751:
3747:
3746:
3743:
3735:
3727:
3722:
3720:
3715:
3713:
3708:
3707:
3704:
3694:
3693:
3682:
3668:
3666:
3661:
3659:
3657:
3656:T. terrestris
3652:
3650:
3648:
3643:
3641:
3639:
3634:
3633:
3631:
3629:
3628:
3623:
3620:
3611:
3607:
3597:
3595:
3590:
3589:
3587:
3585:
3584:
3579:
3573:
3571:
3566:
3565:
3563:
3561:
3560:
3559:Ceratotherium
3555:
3549:
3547:
3542:
3541:
3539:
3537:
3536:
3531:
3525:
3523:
3518:
3516:
3514:
3509:
3508:
3506:
3504:
3503:
3498:
3495:
3485:
3481:
3477:
3476:
3470:
3466:
3452:
3450:
3445:
3443:
3441:
3436:
3434:
3432:
3426:
3425:
3424:
3418:
3417:
3414:
3412:
3407:
3405:
3403:
3398:
3396:
3394:
3389:
3387:
3385:
3379:
3378:
3377:
3371:
3370:
3367:
3365:
3360:
3356:
3354:
3349:
3348:
3347:
3345:
3339:
3338:
3337:
3331:
3330:
3328:
3322:
3314:
3313:
3308:
3305:
3295:
3291:
3287:
3286:
3280:
3276:
3270:
3266:
3264:
3260:
3258:
3254:
3252:
3248:
3246:
3242:
3241:
3238:
3233:
3222:
3217:
3215:
3210:
3208:
3203:
3202:
3199:
3187:
3184:
3182:
3179:
3177:
3174:
3172:
3169:
3168:
3165:
3159:
3158:
3153:
3151:
3150:
3145:
3143:
3142:
3137:
3135:
3134:
3129:
3127:
3126:
3121:
3119:
3118:
3113:
3111:
3109:
3103:
3101:
3100:
3095:
3093:
3092:
3087:
3085:
3084:
3079:
3077:
3076:
3071:
3069:
3068:
3063:
3061:
3060:
3055:
3053:
3052:
3047:
3045:
3044:
3039:
3037:
3036:
3031:
3029:
3028:
3027:Equus latipes
3023:
3021:
3020:
3015:
3013:
3012:
3007:
3005:
3004:
2999:
2997:
2996:
2991:
2989:
2988:
2983:
2981:
2980:
2975:
2973:
2972:
2967:
2965:
2964:
2959:
2957:
2956:
2951:
2949:
2948:
2943:
2941:
2940:
2935:
2933:
2931:
2925:
2923:
2922:
2917:
2915:
2914:
2913:Equus alaskae
2909:
2908:
2906:
2903:
2897:
2891:
2888:
2886:
2883:
2881:
2878:
2876:
2873:
2872:
2870:
2866:
2856:
2854:
2849:
2848:
2846:
2844:
2842:
2836:
2830:
2828:
2823:
2821:
2819:
2814:
2813:
2811:
2809:
2807:
2801:
2795:
2793:
2788:
2786:
2784:
2779:
2777:
2775:
2770:
2768:
2766:
2761:
2759:
2757:
2752:
2750:
2748:
2743:
2741:
2739:
2733:
2732:
2730:
2728:
2726:
2720:
2717:
2715:
2711:
2701:
2699:
2694:
2692:
2690:
2684:
2682:
2680:
2675:
2674:
2672:
2670:
2668:
2662:
2659:
2657:
2653:
2643:
2641:
2636:
2634:
2632:
2627:
2625:
2623:
2618:
2616:
2614:
2609:
2608:
2606:
2604:
2602:
2594:
2588:
2586:
2580:
2578:
2576:
2571:
2569:
2567:
2562:
2560:
2558:
2553:
2551:
2549:
2543:
2541:
2539:
2534:
2533:
2531:
2529:
2527:
2519:
2513:
2511:
2506:
2504:
2502:
2496:
2494:
2492:
2487:
2485:
2483:
2478:
2477:
2475:
2473:
2471:
2463:
2460:
2458:
2454:
2450:
2444:
2440:
2439:
2430:
2425:
2423:
2418:
2416:
2411:
2410:
2407:
2389:
2385:
2379:
2371:
2367:
2363:
2359:
2355:
2351:
2350:Geodiversitas
2347:
2345:
2336:
2328:
2324:
2320:
2316:
2312:
2308:
2304:
2302:
2298:
2289:
2281:
2277:
2273:
2269:
2265:
2261:
2260:
2255:
2251:
2244:
2236:
2232:
2227:
2222:
2217:
2212:
2208:
2204:
2201:(2): e55950.
2200:
2196:
2195:
2190:
2183:
2175:
2171:
2167:
2163:
2159:
2155:
2151:
2147:
2143:
2139:
2138:
2130:
2122:
2118:
2114:
2111:(in French).
2110:
2103:
2087:
2083:
2076:
2069:
2067:
2060:
2056:
2050:
2041:
2036:
2032:
2028:
2024:
2017:
2015:
2006:
2004:0-8160-1194-X
2000:
1996:
1992:
1991:
1983:
1975:
1971:
1967:
1963:
1959:
1955:
1951:
1947:
1940:
1933:
1925:
1919:
1915:
1911:
1907:
1903:
1896:
1888:
1884:
1880:
1876:
1872:
1868:
1863:
1858:
1854:
1850:
1846:
1839:
1831:
1827:
1823:
1819:
1815:
1811:
1807:
1803:
1799:
1795:
1788:
1780:
1778:1-84028-152-9
1774:
1770:
1763:
1749:
1745:
1739:
1735:
1721:
1717:
1713:
1712:Dolichohippus
1709:
1703:
1699:
1679:
1678:
1673:
1671:
1670:
1665:
1663:
1662:
1657:
1651:
1650:
1645:
1643:
1642:
1637:
1635:
1634:
1629:
1627:
1626:
1621:
1619:
1618:
1613:
1611:
1610:
1605:
1601:
1600:
1595:
1593:
1592:
1587:
1586:
1585:
1584:
1583:Hesperohippus
1579:
1578:
1577:
1576:
1575:
1574:
1569:
1561:western horse
1560:
1559:
1554:
1553:
1552:
1551:
1546:
1542:
1541:
1536:
1534:
1533:
1528:
1526:
1525:
1520:
1518:
1517:
1512:
1510:
1509:
1504:
1500:
1499:
1494:
1492:
1491:
1486:
1483:
1482:
1477:
1476:
1471:
1469:
1468:
1463:
1461:
1460:
1455:
1454:
1453:Stenon zebra
1452:
1451:
1446:
1445:
1444:
1442:
1437:
1435:
1434:
1429:
1427:
1426:
1421:
1419:
1418:
1413:
1411:
1410:
1405:
1403:
1402:
1397:
1395:
1394:
1389:
1387:
1386:
1381:
1379:
1376:
1372:
1371:
1370:
1369:
1365:
1361:
1360:
1359:Equus ovodovi
1355:
1354:
1353:
1352:
1347:
1342:
1341:
1336:
1335:
1334:
1333:
1328:
1324:
1323:
1318:
1316:
1315:
1310:
1306:
1303:
1300:
1298:
1295:
1292:
1291:
1290:
1287:
1284:
1280:
1279:Selous' zebra
1277:
1274:
1272:
1269:
1265:
1263:
1260:
1257:
1255:
1252:
1249:
1247:
1244:
1241:
1239:
1236:
1233:
1231:
1230:Grant's zebra
1228:
1225:
1224:
1223:
1220:
1217:
1215:
1214:
1209:
1207:
1206:
1201:
1199:
1198:Grévy's zebra
1196:
1193:
1192:
1191:
1190:
1185:
1181:
1180:
1175:
1173:
1172:
1167:
1165:
1164:
1159:
1157:
1156:
1151:
1149:
1146:
1142:
1138:
1135:
1132:
1130:
1129:Eastern kiang
1127:
1124:
1122:
1121:Western kiang
1119:
1116:
1114:
1111:
1108:
1107:
1106:
1103:
1100:
1096:
1093:
1090:
1088:
1085:
1082:
1080:
1077:
1074:
1072:
1069:
1065:
1063:
1060:
1057:
1056:
1054:
1051:
1048:
1044:
1041:
1038:
1036:
1033:
1029:
1027:
1024:
1021:
1019:
1016:
1013:
1012:
1011:
1008:
1005:
1004:
1003:
1002:
997:
993:
992:
987:
985:
984:
983:Equus neogeus
979:
977:
976:
971:
970:
968:
964:
963:
958:
956:
955:
950:
948:Mexican horse
947:
946:
941:
939:
938:
933:
931:
930:
925:
922:
921:
916:
914:
913:
912:Equus alaskae
908:
906:
905:
900:
896:
893:
890:
888:
885:
882:
880:
877:
874:
873:
872:
869:
866:
865:
863:
859:
858:
853:
851:
850:
845:
843:
842:
837:
836:
835:
831:
827:
826:
821:
819:
818:
813:
812:
811:
807:
805:
804:
799:
797:
796:
791:
789:
788:
783:
782:
781:
777:
773:
772:
767:
765:
764:
759:
757:
756:
751:
749:
748:
743:
741:
740:
735:
733:
732:
727:
725:
724:
719:
718:
717:
713:
711:
710:
705:
703:
702:
697:
695:
694:
689:
688:
687:
683:
679:
678:
673:
671:
670:
665:
663:
662:
657:
655:
654:
649:
647:
646:
641:
639:
638:
633:
631:
630:
625:
623:
622:
617:
615:
614:
613:Archaeohippus
609:
607:
606:
601:
600:
599:
595:
591:
590:
585:
583:
582:
577:
575:
574:
573:Protorohippus
569:
567:
566:
561:
559:
558:
553:
551:
550:
545:
543:
542:
537:
535:
534:
529:
527:
526:
521:
520:
519:
515:
514:
513:
509:
508:
506:
502:
498:
494:
490:
489:
484:
483:
481:
473:
469:
465:
459:
455:
449:
448:Protorohippus
445:
437:
428:
426:
422:
417:
412:
410:
405:
403:
399:
395:
394:
393:Hyracotherium
389:
385:
378:
377:
372:
371:
366:
365:
360:
359:
354:
353:
347:
342:
332:
330:
326:
321:
319:
315:
312:
308:
304:
300:
296:
295:
291:
287:
283:
279:
275:
271:
267:
263:
259:
255:
252:
248:
244:
234:
231:
229:
223:
222:
220:
215:
210:
205:
202:
199:
198:
195:
192:
190:Superfamily:
189:
188:
185:
182:
179:
178:
175:
172:
169:
168:
165:
162:
159:
158:
155:
152:
149:
148:
145:
142:
139:
138:
133:
128:
124:
121:
117:
113:
108:
104:
100:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
44:
39:
33:
22:
19:
4202:
4167:
4160:
4153:
4146:
4139:
4132:
4123:
4116:
4112:Protohippina
4109:
4100:
4093:
4086:
4066:
4061:Shanxihippus
4059:
4052:
4045:
4040:Neohipparion
4038:
4031:
4026:Hippotherium
4024:
4017:
4010:
4003:
3996:
3989:Hipparionini
3976:
3971:Acritohippus
3969:
3941:
3934:
3927:
3920:
3913:
3908:Kalobatippus
3906:
3899:
3892:
3885:
3880:Anchitherium
3878:
3860:Xenicohippus
3858:
3851:
3844:
3837:
3830:
3823:
3818:Ghazijhippus
3816:
3809:
3802:
3795:
3733:
3690:
3664:
3655:
3647:T. pinchaque
3646:
3637:
3625:
3593:
3581:
3569:
3557:
3545:
3535:Dicerorhinus
3533:
3522:R. sondaicus
3521:
3513:R. unicornis
3512:
3500:
3475:Ceratomorpha
3473:
3448:
3439:
3430:
3421:
3419:
3410:
3401:
3392:
3384:E. africanus
3383:
3374:
3372:
3363:
3352:
3343:
3342:Wild horse (
3334:
3332:
3310:
3293:
3283:
3170:
3154:
3146:
3139:
3130:
3125:Equus scotti
3122:
3114:
3107:
3096:
3088:
3080:
3072:
3064:
3056:
3048:
3040:
3032:
3024:
3019:Equus lambei
3016:
3008:
3000:
2992:
2984:
2976:
2968:
2960:
2952:
2944:
2936:
2929:
2921:Equus andium
2918:
2910:
2901:
2852:
2840:
2826:
2817:
2805:
2791:
2782:
2773:
2764:
2755:
2746:
2737:
2725:Equus quagga
2724:
2697:
2688:
2678:
2666:
2665:Wild horse (
2639:
2630:
2621:
2612:
2600:
2584:
2574:
2565:
2556:
2547:
2537:
2525:
2509:
2500:
2490:
2481:
2469:
2448:
2437:
2391:. Retrieved
2387:
2378:
2353:
2349:
2343:
2335:
2310:
2306:
2300:
2296:
2288:
2263:
2257:
2253:
2249:
2243:
2198:
2192:
2182:
2141:
2135:
2129:
2112:
2108:
2102:
2090:. Retrieved
2088:(3): 593–603
2085:
2081:
2049:
2030:
2026:
1989:
1982:
1949:
1945:
1932:
1905:
1895:
1852:
1848:
1838:
1797:
1793:
1787:
1768:
1762:
1751:. Retrieved
1747:
1738:
1719:
1715:
1711:
1707:
1702:
1675:
1669:Onohippidium
1667:
1659:
1647:
1639:
1631:
1623:
1615:
1607:
1597:
1589:
1581:
1571:
1556:
1548:
1538:
1530:
1522:
1514:
1506:
1496:
1488:
1479:
1473:
1465:
1457:
1448:
1440:
1431:
1423:
1415:
1407:
1399:
1391:
1383:
1374:
1366:
1357:
1349:
1338:
1330:
1320:
1312:
1301:
1293:
1285:
1275:
1267:
1258:
1250:
1242:
1234:
1226:
1222:Plains zebra
1219:Equus quagga
1218:
1211:
1203:
1195:Equus grevyi
1194:
1187:
1177:
1169:
1163:Equus tabeti
1161:
1153:
1148:European ass
1144:
1133:
1125:
1117:
1109:
1101:
1091:
1083:
1075:
1067:
1058:
1049:
1039:
1031:
1022:
1014:
1006:
999:
989:
981:
975:Equus andium
973:
966:
960:
952:
943:
937:Equus scotti
935:
927:
920:Equus lambei
918:
910:
902:
891:
883:
875:
867:
855:
847:
839:
823:
815:
810:Protohippina
801:
793:
785:
769:
761:
755:Neohipparion
753:
745:
739:Hippotherium
737:
729:
721:
716:Hipparionini
709:Acritohippus
707:
701:Scaphohippus
699:
691:
675:
667:
659:
651:
643:
637:Kalobatippus
635:
627:
619:
611:
605:Anchitherium
603:
589:Xenicohippus
587:
579:
571:
563:
555:
547:
539:
531:
523:
517:
511:
495:in a single
485:
467:
457:
447:
420:
413:
406:
398:type species
391:
381:
374:
370:Equus scotti
368:
362:
358:Neohipparion
356:
350:
324:
322:
292:
247:horse family
246:
242:
241:
217:Subfamilies
203:
99:Early Eocene
30:50.3–0
18:
4369:iNaturalist
4227:Wikispecies
4141:Astrohippus
4125:Protohippus
4068:Sivalhippus
3978:Merychippus
3894:Desmatippus
3825:Haplohippus
3789:Basal forms
3772:Superorder
3766:Infraclass
3594:D. bicornis
3423:Hippotigris
3402:E. hemionus
3364:E. caballus
3319:(including
3285:Hippomorpha
3267:Superorder
3261:Infraclass
2899:Prehistoric
2853:Equus grevy
2841:Equus grevy
2806:Equus zebra
2667:Equus ferus
2601:Equus kiang
2393:17 December
2297:Sussemionus
2254:Hippotigris
2252:, subgenus
2115:: 283–292.
2109:Quaternaire
1720:Hippotigris
1714:, Vilstrup
1708:Hippotigris
1625:Equus major
1532:Equus verae
1351:Sussemionus
1286:Equus zebra
1189:Hippotigris
1102:Equus kiang
868:Equus ferus
841:Astrohippus
825:Protohippus
693:Merychippus
621:Desmatippus
596:Subfamily †
533:Haplohippus
516:Subfamily †
425:Pleistocene
402:palaeothere
311:superfamily
4505:Categories
4169:Pliohippus
4148:Dinohippus
3943:Sinohippus
3936:Parahippus
3922:Mesohippus
3915:Megahippus
3901:Hypohippus
3853:Sifrhippus
3832:Pliolophus
3665:T. indicus
3638:T. bairdii
3502:Rhinoceros
3181:Wild horse
1753:2021-07-18
1730:References
1677:Pliohippus
1580:†subgenus
1547:†subgenus
1348:†Subgenus
1329:Subgenus †
962:Amerhippus
959:Subgenus †
871:Wild horse
849:Dinohippus
684:Subfamily
677:Sinohippus
669:Parahippus
653:Mesohippus
645:Megahippus
629:Hypohippus
581:Sifrhippus
565:Pliolophus
501:rhinoceros
478:See also:
396:, but the
376:Hypohippus
352:Mesohippus
307:rhinoceros
4162:Hippidion
4133:Subtribe
4110:Subtribe
4033:Nannippus
4019:Hipparion
3929:Miohippus
3846:Orohippus
3811:Erihippus
3804:Epihippus
3610:Tapiridae
3449:E. grevyi
3431:E. quagga
3420:Subgenus
3393:E. asinus
3373:Subgenus
3333:Subgenus
2370:128625427
2092:14 August
1871:1558-5646
1849:Evolution
1830:133808650
1822:1867-1594
1661:Hippidion
1550:Allozebra
1186:Subgenus
998:Subgenus
832:Subtribe
808:Subtribe
747:Nannippus
731:Hipparion
661:Miohippus
557:Orohippus
525:Epihippus
458:Hipparion
439:Skeletons
335:Evolution
323:The term
251:taxonomic
249:) is the
150:Kingdom:
144:Eukaryota
4413:14100002
4267:BioLib:
4212:Wikidata
4118:Calippus
3797:Eohippus
3768:Eutheria
3762:Mammalia
3756:Chordata
3750:Animalia
3748:Kingdom
3692:Category
3615:(Tapirs)
3570:C. simum
3440:E. zebra
3411:E. kiang
3400:Onager (
3391:Donkey (
3344:E. ferus
3263:Eutheria
3257:Mammalia
3251:Chordata
3245:Animalia
3243:Kingdom
2736:Quagga (
2687:Tarpan (
2489:Donkey (
2327:20338542
2235:23437078
2194:PLOS ONE
2174:19069554
2166:18398561
1974:19876380
1966:15774746
1879:28563331
967:E. ferus
817:Calippus
549:Minippus
541:Eohippus
364:Eohippus
314:Equoidea
282:ungulate
200:Family:
194:Equoidea
174:Mammalia
164:Chordata
160:Phylum:
154:Animalia
140:Domain:
4511:Equidae
4483:ZooBank
4462:1070066
4260:Equidae
4247:Equidae
4233:Equidae
4218:Q165115
4203:Equidae
3954:Equinae
3754:Phylum
3734:Equidae
3627:Tapirus
3583:Diceros
3409:Kiang (
3294:Equidae
3249:Phylum
3227:Extant
3171:Equidae
2904:species
2890:Zebroid
2868:Hybrids
2677:Horse (
2268:Bibcode
2226:3577844
2203:Bibcode
2146:Bibcode
1995:200–204
1946:Science
1887:5053639
1802:Bibcode
1674:Genus †
1666:Genus †
1658:Genus †
846:Genus †
838:Genus †
822:Genus †
814:Genus †
800:Genus †
792:Genus †
784:Genus †
768:Genus †
760:Genus †
752:Genus †
744:Genus †
736:Genus †
728:Genus †
720:Genus †
714:Tribe †
706:Genus †
698:Genus †
690:Genus †
686:Equinae
674:Genus †
666:Genus †
658:Genus †
650:Genus †
642:Genus †
634:Genus †
626:Genus †
618:Genus †
610:Genus †
602:Genus †
586:Genus †
578:Genus †
570:Genus †
562:Genus †
554:Genus †
546:Genus †
538:Genus †
530:Genus †
522:Genus †
512:Equidae
510:Family
505:extinct
416:Miocene
384:fossils
274:fossils
270:species
243:Equidae
233:Equinae
204:Equidae
180:Order:
170:Class:
24:Equidae
4446:NZOR:
4400:180688
4387:104886
4322:1EQUUF
4135:Equina
4079:Equini
3778:Order
3760:Class
3376:Asinus
3321:Zebras
3255:Class
2714:Zebras
2656:Horses
2368:
2325:
2233:
2223:
2172:
2164:
2001:
1972:
1964:
1920:
1885:
1877:
1869:
1828:
1820:
1775:
1744:"PBDB"
1716:et al.
1271:Quagga
1053:Onager
1001:Asinus
887:Tarpan
862:extant
854:Genus
834:Equina
780:Equini
778:Tribe
507:taxa.
486:Order
388:Eocene
329:equine
303:tapirs
286:extant
266:zebras
264:, and
258:horses
254:family
211:, 1821
103:Recent
4475:42984
4382:IRMNG
4374:43328
4335:54092
4270:20936
4155:Equus
3336:Equus
3312:Equus
2902:Equus
2880:Kunga
2875:Hinny
2457:Asses
2438:Equus
2366:S2CID
2344:Equus
2301:Equus
2250:Equus
2170:S2CID
2078:(PDF)
1970:S2CID
1942:(PDF)
1883:S2CID
1826:S2CID
1694:Notes
1443:group
1105:Kiang
857:Equus
497:genus
493:tapir
468:Equus
421:Equus
325:equid
294:Equus
290:genus
262:asses
4439:9788
4434:NCBI
4395:ITIS
4361:5479
4356:GBIF
4317:EPPO
4309:1670
4283:1081
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