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Equus pacificus ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4969228	https://www.gbif.org/species/4969228
PaleoBioDB ID (PBDB)	46295	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=46295

Rank

species

Taxonomy (GBIF)

Life : Animalia : Chordata : Mammalia : Perissodactyla : Equidae : Equus : Equus pacificus

Taxonomy (PBDB)

Life : Animalia : Chordata : Mammalia : Perissodactyla : Equidae : Equus : Equus pacificus

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Synapsida	Osborn 1903
-	Therapsida
infraorder	Cynodontia
-	Epicynodontia	Hopson and Kitching 2001
infraorder	Eucynodontia	Kemp 1982
-	Probainognathia	Hopson 1990
-	Mammaliamorpha	Rowe 1988
-	Mammaliaformes	Rowe 1988
class	Mammalia	Linnaeus 1758
subclass	Tribosphenida
infraclass	Eutheria
-	Placentalia	Owen 1837
order	Perissodactyla
suborder	Lophodontomorpha	Hooker and Dashzeveg 2004
infraorder	Euperissodactyla	Hooker and Dashzeveg 2004
-	Hippomorpha
superfamily	Equoidea	Hay 1902
family	Equidae	Gray 1821
subfamily	Equinae	Steinmann and Döderlein 1890
tribe	Equini	Quinn 1955
genus	Equus	Linnaeus 1758
species	Equus pacificus	Leidy 1868

Generic Name

Equus

Scientific Name

Equus pacificus Leidy, 1868

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Equus pacificus	species	belongs to Equus	stated without evidence	Leidy, 1868
Equus pacificus	species	subjective synonym of Equus occidentalis	stated with evidence	Leidy, 1873
Equus pacificus	species	belongs to Equus	stated with evidence	Gidley, 1901
Equus pacificus	species	belongs to Equus	stated without evidence	Hay, 1902
Equus pacificus	species	subjective synonym of Equus occidentalis	stated without evidence	Schultz, 1938
Equus pacificus	species	belongs to Equus	stated without evidence	Quinn, 1957
Equus pacificus	species	belongs to Equus	stated with evidence	Kurten and Anderson, 1980

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

2.59 - 0.30 Ma
Pleistocene

Last Recorded Appearance

0.13 - 0.01 Ma
Pleistocene

Environment

terrestrial (based on Eutheria)

Motility

actively mobile (based on Osteichthyes)

Diet

grazer (based on Equus)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

J. Leidy. 1868. Notice of Some Remains of Horses. Proceedings of the Academy of Natural Sciences of Philadelphia 20:195

Fossil Distribution

Synonymy List

Year	Name and Author
1868	Equus pacificus Leidy p. 195
1901	Equus pacificus Gidley p. 116 fig. 11
1902	Equus pacificus Hay p. 623
1931	Equus pacificus Elftman p. 13
1957	Equus pacificus Quinn p. 27
1972	Equus pacificus Lundelius, Jr.
1980	Equus pacificus Kurten and Anderson p. 289

References

Leidy J. Notice of Some Remains of Horses, Proceedings of the Academy of Natural Sciences of Philadelphia 20, 195

Gidley J. W. (1901) Tooth Characters and Revision of the North American Species of the Genus Equus, Bulletin of the American Museum of Natural History 14 9, 1-60

Hay O. P. (1902) , Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179, 1-868

Elftman H. O. (1931) Pleistocene mammals of Fossil Lake, Oregon, American Museum Novitates 481, 1-21

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

Lundelius, Jr. E. L. (1972) Fossil Vertebrates from the Late Pleistocene Ingleside Fauna, San Patricio County, Texas, Bureau of Economic Geology Report of Investigations 77, 1-74 doi:10.23867/RI0077D

Kurten B., Anderson E. (1980) , Pleistocene mammals of North America, 1-442

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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