|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Perissodactyla - Brontotheriidae
It was synonymized subjectively with Titanotherium robustum by Osborn and Wortman (1895); it was synonymized subjectively with Brontotherium gigas by Osborn (1902) and Osborn (1929); it was recombined as Megacerops elatus by Mader (1989) and Mader and Alexander (1995); it was considered a nomen dubium by Mader (1998).
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.