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Menodus tichoceras

Mammalia - Perissodactyla - Brontotheriidae

Taxonomy
Menodus tichoceras was named by Scott and Osborn (1887).

It was recombined as Titanotherium tichoceras by Osborn (1896); it was recombined as Brontotherium tichoceras by Hay (1902) and Osborn (1929); it was considered a nomen dubium by Mader (1989) and Mader (1998).

Synonymy list
YearName and author
1887Menodus tichoceras Scott and Osborn p. 159
1896Titanotherium tichoceras Osborn p. 184 figs. Plate III
1902Brontotherium tichoceras Hay p. 635
1929Brontotherium tichoceras Osborn

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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
RankNameAuthor
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
familyBrontotheriidae()
subfamilyBrontotheriinaeMarsh 1873
tribeBrontotheriiniMarsh 1873
subtribeBrontotheriinaMarsh 1873
—BrontotheriitaMarsh 1873
genusMenodus
speciestichoceras

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.

†Menodus tichoceras Scott and Osborn 1887
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Diagnosis
ReferenceDiagnosis
W. B. Scott and H. F. Osborn 1887Dentition : I. 2/2, C. 1/1, Pm. 4/?, M. 3/?. No diastema behind the canine. Second cone on last upper molar united with the cingulum. Probably two lower incisoi-s. Upper premolars with a faint or no internal cingulum. Nasal bones intermediate in length and narrowing anteriorly. Horns elbngate, sub- cylindrical in section at the base, and in side view inclined obliquely forward, so as to partly overhang the snout. Anterior nares transversely narrow and vertically deep, so that the snout is very elevated. Superciliary ridge prominent, rugose, and overhanging the temporal fossae. Orbits rather small and enclosed. A post-orbital process. Zygomatic arches wide and partly flanged. Post-glenoid and post-tympanic processes widely united.