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Palaeosyops

Mammalia - Perissodactyla - Brontotheriidae

Synonyms
Synonymy list
YearName and author
1870Palaeosyops Leidy p. 113
1872Palaeosyops Marsh
1872Limnohyus Marsh p. 124
1873Palaeosyops Leidy p. 323
1881Limnohyus Cope p. 395
1881Palaeosyops Cope p. 395
1890Limnohyops Marsh p. 525
1897Palaeosyops ultimus Matthew
1902Limnohyops Hay p. 630
1902Palaeosyops Hay p. 630
1913Palaeosyops Scott p. 291
1914Limnohyops Osborn p. 403
1914Palaeosyops Osborn p. 403
1919Eometarhinus Osborn
1929Limnohyops Osborn
1988Palaeosyops Carroll
1989Palaeosyops Prothero and Schoch p. 536
1998Palaeosyops Mader p. 529
2008Palaeosyops Mihlbachler p. 408
2010Palaeosyops Mader p. 15

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
RankNameAuthor
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
familyBrontotheriidae()
subfamilyPalaeosyopinaeSteinmann and Döderlein 1890
genusPalaeosyops

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. †Palaeosyops Leidy 1870
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Invalid names: Eometarhinus huerfanensis Osborn 1919 [synonym]
Palaeosyops junius Leidy 1873
Palaeosyops manteoceras Matthew 1899
Palaeosyops paludosus Leidy 1870
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Invalid names: Canis marshii Hay 1899 [synonym], Limnohyops matthewi Osborn 1908 [synonym], Palaeosyops humilis Leidy 1872 [synonym], Palaeosyops laevidens Cope 1873 [synonym], Palaeosyops longirostris Earle 1892 [synonym], Palaeosyops major Leidy 1871 [synonym], Palaeosyops minor Marsh 1871 [synonym], Palaeosyops minor Earle 1891 [synonym], Palaeosyops priscus Osborn 1908 [synonym]
Palaeosyops robustus Marsh 1872
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Invalid names: Palaeosyops copei Osborn 1908 [synonym], Palaeosyops diaconus Cope 1873 [synonym], Palaeosyops grangeri Osborn 1908 [synonym], Palaeosyops laticeps Leidy 1872 [synonym], Palaeosyops leidyi Osborn 1908 [synonym]
Invalid names: Eometarhinus Osborn 1919 [synonym], Limnohyops Marsh 1890 [synonym], Limnohyus Marsh 1872 [synonym], Palaeosyops ultimus Matthew 1897 [nomen nudum]
Diagnosis
ReferenceDiagnosis
B. J. Mader 2010Same as for member genus, Palaeosyops (see below). Sister taxon to all brontothere
subfamilies except for the Eotitanopinae (see cladogram in Mader 1998, Fig. 36.5)
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserf
Reproduction: viviparoussubc
Created: 2005-08-31 14:53:16
Modified: 2005-08-31 16:53:16
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Mader 1998, Carroll 1988, Lillegraven 1979, Ji et al. 2002, Hendy et al. 2009

Age range: base of the Bridgerian to the top of the Uintan or 50.30000 to 40.40000 Ma

Collections (56 total)


Time interval Ma Country or state Original ID and collection number
Wasatchian - Bridgerian55.8 - 46.2USA (Wyoming) P. fontinalis (15463) P. sp. (16134)
Bridgerian50.3 - 46.2USA (Wyoming) Eotitanops sp. (16487) Limnohyops laevidens, P. major (16205) Limnohyops laticeps (16282) Limnohyops monoconus, P. major, P. paludosus (16228) P. fontinalis (15837 16089 16094 16095 16097 16115 16116 16117 16198 16219 16232 16258 16259 16264 16291 16311 16320 16321 16326 16338 16352 16362 16380 16383 16394 16489 27269) P. grangeri (16448) P. laevidens, P. paludosus (16201 16284) P. leidyi (16420) P. major (16212 16414) P. paludosus (16226 16455) P. robustus, Limnohyops laticeps (16279) P. robustus, Limnohyops laticeps, P. leidyi (16235) P. robustus, P. paludosus (16236) P. sp. (16135 16647 129895)
Bridgerian50.3 - 46.2USA (Colorado) Eometarhinus huerfanensis, P. fontinalis (16239) P. fontinalis (16231 16240 16242 16298 16398 180105)
Bridgerian50.3 - 46.2USA (Montana) P. fontinalis (16401)
Uintan46.2 - 40.4USA (Wyoming) Eometarhinus sp. (16540)