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Megacerops

Mammalia - Perissodactyla - Brontotheriidae

Synonyms
Synonymy list
YearName and author
1848Palaeotherium (Menodus) Pomel
1849Palaeotherium giganteum Pomel
1852Titanotherium Leidy
1856Titanotherium Leidy p. 92
1870Megacerops Leidy p. 2
1873Megaceratops Cope
1873Symborodon Cope pp. 2 - 3
1873Miobasileus Cope pp. 3 - 4
1873Megaceratops Cope p. 5
1873Megacerops Leidy p. 335
1873Brontotherium Marsh p. 486
1873Titanotherium Marsh p. 486
1875Anisacodon Marsh
1875Brontotherium Marsh
1875Megacerops Marsh
1875Titanotherium Marsh
1876Diconodon Marsh
1881Menodus Cope p. 397
1881Symborodon Cope p. 397
1886Menodus Cope
1886Menodus angustigenis Cope p. 3
1887Allops Marsh
1887Brontops Marsh
1887Menops Marsh
1887Titanops Marsh
1887Brontops Marsh p. 326
1887Menops Marsh p. 328 figs. 9-10
1887Titanops Marsh p. 330 fig. 11
1887Allops Marsh p. 331
1887Menodus Scott and Osborn p. 157
1889Haplacodon Cope p. 153
1889Haplacodon angustigenis Cope p. 153
1890Diploclonus Marsh
1890Teleodus Marsh p. 524
1891Menodus Cope p. 8
1891Menodus angustigenis Cope p. 13
1895Titanotherium Osborn and Wortman p. 346
1896Titanotherium angustigenis Osborn p. 184
1902Megacerops Hay p. 633
1902Megacerops angustigenis Hay p. 633
1902Brontotherium Hay p. 634
1902Titanotherium Hay p. 635
1902Symborodon Hay p. 637
1902Teleodus Hay p. 638
1902Megacerops angustigenis Osborn
1908Megacerops Lambe
1908Megacerops angustigenis Lambe
1913Titanotherium Scott p. 291
1914Brontops Osborn p. 405
1914Brontotherium Osborn p. 405
1914Diploclonus Osborn p. 405
1914Megacerops Osborn p. 405
1929Brontops Osborn
1929Diploclonus Osborn
1929Menodus giganteus Osborn
1929Teleodus Osborn
1935Ateleodon Schlaikjer
1945Teleodus Scott
1967Teleodus Bjork p. 231
1969Brontops Ferrusquia-Villafranca
1988Brontops Carroll
1988Megacerops Carroll
1989Brontops Mader
1989Megacerops Mader
1989Menops Mader
1989Brontops Prothero and Schoch p. 537
1989Megacerops Prothero and Schoch p. 537
1989Menops Prothero and Schoch p. 537
1989Symborodon Prothero and Schoch p. 537
1989Teleodus Prothero and Schoch p. 537
1989Titanotherium Prothero and Schoch p. 537
1998Brontops Mader
1998Megacerops Mader
1998Menops Mader
2008Megacerops Mihlbachler p. 413

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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
Mammaliaformes
classMammalia
RankNameAuthor
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
familyBrontotheriidae()
subfamilyBrontotheriinaeMarsh 1873
tribeBrontotheriiniMarsh 1873
subtribeBrontotheriinaMarsh 1873
BrontotheriitaMarsh 1873
genusMegacerops

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. †Megacerops Leidy 1870
show all | hide all
Megacerops acer Cope 1873
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Invalid names: Symborodon altirostris Cope 1873 [synonym]
Megacerops bucco Cope 1873
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Invalid names: Brontotherium gigas Marsh 1873 [synonym], Brontotherium hatcheri Osborn 1908 [synonym], Brontotherium ingens Marsh 1874 [synonym], Brontotherium leidyi Osborn 1902 [synonym], Brontotherium platyceras Scott and Osborn 1887 [synonym]
Megacerops copei Osborn 1908
Megacerops curtus Marsh 1887
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Invalid names: Menodus peltoceras Cope 1891 [synonym]
Megacerops elatus Marsh 1887
Megacerops kuwagatarhinus Mader and Alexander 1995
Megacerops osborni Schlaikjer 1935
Megacerops riggsi Osborn 1916
Megacerops syceras Cope 1889
Invalid names: Allops Marsh 1887 [synonym], Ateleodon Schlaikjer 1935 [synonym], Brontops Marsh 1887 [synonym], Brontotherium Marsh 1873 [synonym], Diploclonus Marsh 1890 [synonym], Haplacodon Cope 1889 [synonym], Megaceratops Cope 1873 [synonym], Menodus Pomel 1848 [synonym], Menops Marsh 1887 [synonym], Symborodon Cope 1873 [synonym], Teleodus Marsh 1890 [synonym], Titanops Marsh 1887 [synonym], Titanotherium Leidy 1852 [synonym]
Diagnosis
ReferenceDiagnosis
W. B. Scott and H. F. Osborn 1887 (Menodus)Dentition : I. 2/2 (variable), C. 1/1, Pm. 4/3, M. 3/3. The incisors are small and variable in number. The upper and lower median incisors are usually wanting. Molars and premolars alike, resembling those of Chalicotherium in pattern. A stout pair of transversely placed horns developed from the frontals and nasals.