|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Perissodactyla - Brontotheriidae
|Year||Name and author|
|1887||Menodus platyceras Scott and Osborn p. 160|
|1896||Titanotherium ramosum Osborn|
|1902||Brontotherium platyceras Osborn|
|1902||Brontotherium ramosum Osborn|
|1929||Brontotherium platyceras Osborn|
|1929||Brontotherium ramosum Osborn|
|1995||Megacerops platyceras Mader and Alexander|
|1998||Megacerops platyceras Mader|
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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.
|W. B. Scott and H. F. Osborn 1887||The dentition is unknown. Nasal bones extremely short and obtuse, as in M. dolichoceius and M. acer. The inner contour of the uorns is concave ; they are greatly flattened antero-posteriorly with a ridge-like outer margin, and connected by a well-raised median ridge. The posterior face is nearly plane,
the anterior is convex, so that the section of the horn is plano-convex from base to tip. In side view the horns completely overhang the nasals, and are slightly recurved. The long axis of the horn section is directly transverse.