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Plesippus

Osteichthyes - Perissodactyla - Equidae

Taxonomy
Plesippus was named by Matthew (1924).

It was synonymized subjectively with Equus by Stirton (1940), Hibbard and Riggs (1949), Lance (1950), Hibbard (1951), Shotwell (1961), Skinner (1972), Skinner et al. (1972), Kurten and Anderson (1980), Galusha et al. (1984), Prothero and Schoch (1989), Winans (1989), Schultz (1990), Kelly (1995), Kelly (1997), MacFadden (1998); it was synonymized subjectively with Hippotigris by McGrew (1944), Mooser (1958); it was reranked as Equus (Plesippus) by Howe (1970), Forsten and Eisenmann (1995); it was synonymized subjectively with Equus (Dolichohippus) by MacFadden and Waldrop (1980).

It was assigned to Equus by Howe (1970), Forsten and Eisenmann (1995); and to Equini by Barrón-Ortiz et al. (2019).

Synonymy list
YearName and author
1924Plesippus Matthew p. 2
1930Plesippus Gidley
1965Plesippus Hibbard and et al.
1970Equus (Plesippus) Howe
1970Plesippus Shotwell
1995Equus (Plesippus) Forsten and Eisenmann p. 88
1995Plesippus Repenning et al.
2019Plesippus Barrón-Ortiz et al. p. 9

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
RankNameAuthor
Mammaliaformes
classMammalia
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
superfamilyEquoidea
familyEquidae
subfamilyEquinae
tribeEquini
genusPlesippus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Plesippus Matthew 1924
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Plesippus francescana Frick 1921
Plesippus idahoensis Merriam 1918
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Invalid names: Equus achates Hay and Cook 1930 [synonym], Equus pons Quinn 1958 [synonym], Equus shoshonensis Gidley 1930 [synonym], Equus tau Owen 1869 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingsubf
Diet: grazersubf
Diet 2: browsersubf
Reproduction: viviparoussubc
Created: 2005-08-31 14:56:53
Modified: 2005-08-31 16:56:53
Source: subf = subfamily, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Nowak 1991, Carroll 1988, MacFadden 1998, Ji et al. 2002, Lillegraven 1979

Age range: base of the Late/Upper Pliocene to the top of the Late/Upper Pleistocene or 3.60000 to 0.01170 Ma

Collections (111 total)


Time interval Ma Country or state Original ID and collection number
Pliocene5.333 - 2.58USA (California) P. sp. (234662)
Pliocene5.333 - 2.58Romania (Southern Moldavia) P. euxinicus (39424)
Blancan4.7 - 1.4Mexico (Baja California Sur) Equus simplicidens (19673 20075)
Blancan4.7 - 1.4USA (Kansas) Equus simplicidens (19924 19929 19932 19937 19939 19941 19942 19944 19947 19948 19951 19952)
Blancan4.7 - 1.4Mexico (Guanajuato) Equus simplicidens (20077 70111)
Blancan4.7 - 1.4USA (Nebraska) Equus simplicidens (19955 19959 19960 19963)
Blancan4.7 - 1.4USA (New Mexico) Equus simplicidens (19968 19970 19974 19975 19981) Equus sp. (19655)
Blancan4.7 - 1.4Mexico (Hidalgo) Equus simplicidens (20073)
Blancan4.7 - 1.4USA (Arizona) Equus simplicidens (19650 19656 19657 19658)
Blancan4.7 - 1.4USA (Idaho) Equus idahoensis (19767) P. idahoensis (19793 19911 19912 19913) P. shoshonensis (19808)
Blancan4.7 - 1.4USA (Colorado) Equus simplicidens (19744)
Blancan4.7 - 1.4Mexico (Michoacan) Equus simplicidens (20072)
Blancan4.7 - 1.4USA (Nevada) Equus idahoensis (19111 19112 229151) Equus simplicidens (19965 19989 19990 19991 19992 19995 19997 20000 20005 20006 20008) Equus sp. (19967)
Blancan4.7 - 1.4USA (California) Equus simplicidens (19708 20114 20118 20120) P. francescana (19664 19665) P. idahoensis (19737) P. proversus (19668) P. simplicidens (19705 28236 28237) P. sp. (234637) Pliohippus francescana (19667)
Blancan4.7 - 1.4USA (Washington) Equus simplicidens (20062 20063)
Blancan4.7 - 1.4USA (Texas) Equus idahoensis (20038) Equus simplicidens (20023 20029 20031 20032 20033 20035 20036 20039 20045 20048 20050 20051 20052 20060) Equus sp. (20026)
Blancan - Irvingtonian4.7 - 0.21Mexico (Jalisco) Equus simplicidens (20078)
Late/Upper Pliocene3.6 - 2.58Mexico (México) Equus crenidens, Equus tau (163820)
Late/Upper Pliocene3.6 - 2.58USA (Texas) Equus simplicidens (191451)
Early/Lower Pleistocene2.58 - 0.774Mexico (Jalisco) Equus simplicidens (189787)
Pleistocene2.58 - 0.0117Mexico Equus crinidens (71317)
Pleistocene2.58 - 0.0117USA (Georgia) Equus tau (77596 96899)
Pleistocene2.58 - 0.0117USA (Texas) Equus littoralis (156789) Onager littoralis (207481)
Irvingtonian1.4 - 0.21USA (California) Equus simplicidens (20124 20125 20127 20128) P. francescana (20319)
Irvingtonian1.4 - 0.21USA (Nevada) Equus idahoensis (20010 20011 20012 20014 20015 20016)
Irvingtonian1.4 - 0.21USA (Texas) Equus simplicidens (20411) Equus tau (20498)
Late/Upper Pleistocene0.129 - 0.0117USA (New Mexico) Equus tau (93281)
Late/Upper Pleistocene (late glacial)0.129 - 0.0117Mexico (Sonora) Equus tau (74471)