Equus scotti

Equus scotti (translated from Latin as Scott's horse,[1] named after vertebrate paleontologist William Berryman Scott) is an extinct species of Equus, the genus that includes the horse.

Equus scotti
Temporal range: 4.9–0.009 Ma
↓
Blancan to Holocene
A mounted skeleton of Equus scotti at the AMNH, constructed out of two skeletons
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: Equidae
Genus: Equus
Subgenus: incertae sedis
Species:
†E. scotti
Binomial name
†Equus scotti
Gidley, 1900
Synonyms

†Equus bautistensis

Evolution
Restoration
Assemblage of bones, illustrated as discovery in situ, of Equus scotti

E. scotti was native to North America[2] and likely evolved from earlier, more zebra-like North American equids early in the Pleistocene epoch.[3] The species may have crossed from North America to Eurasia over the Bering land bridge during the Pleistocene. The species died out at the end of the last ice age in the large-scale Pleistocene extinction of megafauna.

It was among the last of the native horse species in the Americas until the reintroduction of the horse approximately 10,000 years later, when conquistadors brought modern horses to North and South America around the 16th century.

Distribution

Paleontological excavations have identified the locations of numerous places where E. scotti occurred. The species was named from Rock Creek, Texas, United States, where multiple skeletons were recovered. A closely related fossil find was made of Equus bautistensis in California; this species appeared closely related, but of a slightly more primitive form than E. scotti.[4] However, E. bautistensis was redefined as a junior synonym of E. scotti in 1998 by paleontologist E. Scott,[5] who also assigned fossils from the Anza-Borrego Desert in California, tentatively interpreted to represent E. bautistensis, to E. scotti.[6] One of the reported locations farthest south in the Americas is Pali Aike National Park in Chile.[7]

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See also

References
  1. C. R. Harington and Donna Naughton (2003) Annotated Bibliography of Quaternary Vertebrates of Northern North America: With Radiocarbon Dates, University of Toronto Press, 539 pages ISBN 0-8020-4817-X
  2. The Paleobiology Database
  3. Eric Scott (1999) The Equus (Plesippus) - Equus scotti transition in western North America, Journal of Vertebrate Paleontology 19(3): 74-A
  4. Childs Frick (1921) Extinct Vertebrate Faunas of the Badlands of Bautista Creek and San Timoteo Cañon, Southern California, University of California Press, 424 pages
  5. Eric Scott (1998) Equus scotti from southern California, Journal of Vertebrate Paleontology 18(3): 76-A
  6. Eric Scott (2006) Extinct horses and their relatives, Fossil Treasures of the Anza-Borrego Desert: the Last Seven Million Years, ed. G.T. Jefferson and L. Lindsey, Sunbelt Publications, p. 253 - 271
  7. C. Michael Hogan (2008) Pali Aike, The Megalithic Portal, ed. A. Burnham
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