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Brontotherium tichoceras
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), Osborn (1929); it was considered a nomen dubium by Mader (1989), Mader (1998).
It was recombined as Titanotherium tichoceras by Osborn (1896); it was recombined as Brontotherium tichoceras by Hay (1902), Osborn (1929); it was considered a nomen dubium by Mader (1989), Mader (1998).
Entered
by J. Alroy on 2003-01-23; modified by J. Marcot on 2015-12-11
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Menodus tichoceras Scott and Osborn p. 159 |
| 1896 | Titanotherium tichoceras Osborn p. 184 figs. Plate III |
| 1902 | Brontotherium tichoceras Hay p. 635 |
| 1929 | Brontotherium tichoceras Osborn p. 565 figs. Plate CLXXXVII; text figures 177, 469 |
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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.
†Brontotherium tichoceras Scott and Osborn 1887
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. B. Scott and H. F. Osborn 1887 | Dentition : 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. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Ji et al. 2002, Lillegraven 1979, Hendy et al. 2009, Mader 1998 | |||||
Collections
No collection or age range data are available